Registration Dossier

Skin Irritation:

The dermal irritation potential of dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated using OECD QSAR toolbox v3.3 with logPow as the primary descriptor.

Dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated to be not irritating to the skin of New Zealand White rabbits.

Based on the estimated results, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be considered to be not irritating to skin and can be classified under the category “Not Classified” as per CLP regulation.

Eye Irritation:

The ocular irritation potential of dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated using OECD QSAR toolbox v3.3 with logPow as the primary descriptor.

Dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated to be not irritating to the eyes of New Zealand White rabbits.

Based on the estimated results, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be considered to be not irritating to eyes and can be classified under the category “Not Classified” as per CLP regulation.

Reference

Endpoint:

skin irritation: in vivo

Type of information:

(Q)SAR

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification

Justification for type of information:

data is from OECD QSAR toolbox v3.3 and the QMRF report has been attached

Qualifier:

according to guideline

Guideline:

other: estimated data

Principles of method if other than guideline:

Predicton was done uaing OECD QSAR V3.3

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of the test material: Dialuminium tris(4-hydroxy-3-((4-sulphonato-1-naphthyl)azo)naphthalenesulphonate)
- IUPAC name: dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate]
- Molecular formula: C20H14N2O7S22/3Al
- Molecular weight: 1423.3254 g/mol
- Substance type: Organic
- Smiles: c1cc2c(ccc(c2cc1)S(=O)(=O)[O-])/N=N/c3c(c4c(c(c3)S(=O)(=O)[O-])cccc4)O.c1cc2c(ccc(c2cc1)S(=O)(=O)[O-])/N=N/c3c(c4c(c(c3)S(=O)(=O)[O-])cccc4)O.c1cc2c(ccc(c2cc1)S(=O)(=O)[O-])/N=N/c3c(c4c(c(c3)S(=O)(=O)[O-])cccc4)O.[Al+3].[Al+3]

Species:

rabbit

Strain:

New Zealand White

Details on test animals or test system and environmental conditions:

no data available

Type of coverage:

occlusive

Preparation of test site:

shaved

Vehicle:

unchanged (no vehicle)

Controls:

not specified

Amount / concentration applied:

0.5ml

Duration of treatment / exposure:

4 hours

Observation period:

72 hours

Number of animals:

3

Details on study design:

no data available

Other effects / acceptance of results:

no data available

Irritation parameter:

overall irritation score

Basis:

mean

Time point:

72 h

Reversibility:

not specified

Remarks on result:

no indication of irritation

Irritant / corrosive response data:

No irritation observed

Estimation method: Takes mode value from the 11 nearest neighbours
Domain logical expression:Result: In Domain

((((((((((((((("a" or "b" or "c" or "d" or "e" ) and ("f" and ( not "g") ) ) and ("h" and ( not "i") ) ) and ("j" and ( not "k") ) ) and ("l" and ( not "m") ) ) and "n" ) and "o" ) and "p" ) and ("q" and ( not "r") ) ) and ("s" and ( not "t") ) ) and ("u" and ( not "v") ) ) and ("w" and ( not "x") ) ) and "y" ) and "z" ) and ("aa" and "ab" ) )

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Naphthalene sulfonic acids, condensates by OECD HPV Chemical Categories

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as Aromatic compound OR Azo compound OR Hydroxy compound OR Phenol OR Sulfonic acid OR Sulfonic acid derivative by Organic functional groups, Norbert Haider (checkmol) ONLY

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Alcohol, olefinic attach [-OH] OR Aliphatic Nitrogen, one aromatic attach [-N] OR Aromatic Carbon [C] OR Azo [-N=N-] OR Hydroxy, aromatic attach [-OH] OR Hydroxy, sulfur attach [-OH] OR Miscellaneous sulfide (=S) or oxide (=O) OR Olefinic carbon [=CH- or =C<] OR Oxygen, one aromatic attach [-O-] OR Suflur {v+4} or {v+6} OR Sulfinic acid [-S(=O)OH] OR Sulfonate, aromatic attach [-SO2-O] by Organic functional groups (US EPA) ONLY

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as Azo OR Fused carbocyclic aromatic OR Overlapping groups OR Phenol OR Sulfonic acid by Organic Functional groups (nested) ONLY

Domain logical expression index: "e"

Referential boundary: The target chemical should be classified as Aryl OR Azo OR Fused carbocyclic aromatic OR Naphtalene OR Phenol OR Sulfonic acid by Organic Functional groups ONLY

Domain logical expression index: "f"

Referential boundary: The target chemical should be classified as No alert found by DNA binding by OASIS v.1.3

Domain logical expression index: "g"

Referential boundary: The target chemical should be classified as AN2 OR AN2 >> Michael-type addition, quinoid structures OR AN2 >> Michael-type addition, quinoid structures >> Quinoneimines OR AN2 >> Nucleophilic addition to alpha, beta-unsaturated carbonyl compounds OR AN2 >> Nucleophilic addition to alpha, beta-unsaturated carbonyl compounds >> alpha, beta-Unsaturated Aldehydes OR AN2 >> Schiff base formation OR AN2 >> Schiff base formation >> alpha, beta-Unsaturated Aldehydes OR Michael addition OR Michael addition >> Quinone type compounds OR Michael addition >> Quinone type compounds >> Quinone methides OR Non-covalent interaction OR Non-covalent interaction >> DNA intercalation OR Non-covalent interaction >> DNA intercalation >> DNA Intercalators with Carboxamide Side Chain OR Non-covalent interaction >> DNA intercalation >> Fused-Ring Primary Aromatic Amines OR Radical OR Radical >> Radical mechanism via ROS formation (indirect) OR Radical >> Radical mechanism via ROS formation (indirect) >> Fused-Ring Primary Aromatic Amines OR Radical >> Radical mechanism via ROS formation (indirect) >> Single-Ring Substituted Primary Aromatic Amines OR Radical >> ROS formation after GSH depletion OR Radical >> ROS formation after GSH depletion (indirect) OR Radical >> ROS formation after GSH depletion (indirect) >> Quinoneimines OR Radical >> ROS formation after GSH depletion >> Quinone methides OR SN1 OR SN1 >> Alkylation after metabolically formed carbenium ion species OR SN1 >> Alkylation after metabolically formed carbenium ion species >> Polycyclic Aromatic Hydrocarbon Derivatives OR SN1 >> Nucleophilic attack after metabolic nitrenium ion formation OR SN1 >> Nucleophilic attack after metabolic nitrenium ion formation >> Fused-Ring Primary Aromatic Amines OR SN1 >> Nucleophilic attack after metabolic nitrenium ion formation >> Single-Ring Substituted Primary Aromatic Amines OR SN2 OR SN2 >> Alkylation, direct acting epoxides and related after P450-mediated metabolic activation OR SN2 >> Alkylation, direct acting epoxides and related after P450-mediated metabolic activation >> Polycyclic Aromatic Hydrocarbon Derivatives OR SN2 >> Direct acting epoxides formed after metabolic activation OR SN2 >> Direct acting epoxides formed after metabolic activation >> Quinoline Derivatives OR SN2 >> SN2 at an activated carbon atom OR SN2 >> SN2 at an activated carbon atom >> Quinoline Derivatives by DNA binding by OASIS v.1.3

Domain logical expression index: "h"

Referential boundary: The target chemical should be classified as No alert found by DNA binding by OECD

Domain logical expression index: "i"

Referential boundary: The target chemical should be classified as Michael addition OR Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals OR Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals >> Alkyl phenols OR Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals >> Arenes OR Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals >> Hydroquinones OR Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals >> Polycyclic (PAHs) and heterocyclic (HACs) aromatic hydrocarbons-Michael addition OR SN1 OR SN1 >> Nitrenium Ion formation OR SN1 >> Nitrenium Ion formation >> Aromatic azo OR SN1 >> Nitrenium Ion formation >> Primary aromatic amine by DNA binding by OECD

Domain logical expression index: "j"

Referential boundary: The target chemical should be classified as No alert found by Protein binding by OASIS v1.3

Domain logical expression index: "k"

Referential boundary: The target chemical should be classified as Acylation OR Acylation >> Direct acylation involving a leaving group OR Acylation >> Direct acylation involving a leaving group >> (Thio)Acyl and (thio)carbamoyl halides and cyanides OR Michael Addition OR Michael Addition >> Michael addition on conjugated systems with electron withdrawing group OR Michael Addition >> Michael addition on conjugated systems with electron withdrawing group >> alpha,beta-Carbonyl compounds with polarized double bonds OR Michael Addition >> Polarised Alkenes OR Michael Addition >> Polarised Alkenes >> Polarised Alkene - alkenyl pyridines, pyrazines, pyrimidines or triazines OR Nucleophilic addition OR Nucleophilic addition >> Addition to carbon-hetero double bonds OR Nucleophilic addition >> Addition to carbon-hetero double bonds >> Ketones OR SNAr OR SNAr >> Nucleophilic aromatic substitution on activated aryl and heteroaryl compounds OR SNAr >> Nucleophilic aromatic substitution on activated aryl and heteroaryl compounds >> Activated aryl and heteroaryl compounds by Protein binding by OASIS v1.3

Domain logical expression index: "l"

Referential boundary: The target chemical should be classified as No alert found by Protein binding alerts for Chromosomal aberration by OASIS v1.1

Domain logical expression index: "m"

Referential boundary: The target chemical should be classified as Ac-SN2 OR Ac-SN2 >> Acylation involving an activated (glucuronidated) sufonamide group OR Ac-SN2 >> Acylation involving an activated (glucuronidated) sufonamide group >> Arenesulphonamides OR AN2 OR AN2 >> Michael-type addition to quinoid structures OR AN2 >> Michael-type addition to quinoid structures >> Phenols OR AN2 >> Nucleophilic addition at polarized N-functional double bond OR AN2 >> Nucleophilic addition at polarized N-functional double bond >> Arenesulphonamides OR AN2 >> Nucleophilic addition to pyridonimine tautomer of aminopyridoindoles or aminopyridoimidazoles OR AN2 >> Nucleophilic addition to pyridonimine tautomer of aminopyridoindoles or aminopyridoimidazoles >> Heterocyclic Aromatic Amines OR Radical mechanism OR Radical mechanism >> ROS generation and direct attack of hydroxyl radical to the C8 position of nucleoside base OR Radical mechanism >> ROS generation and direct attack of hydroxyl radical to the C8 position of nucleoside base >> Heterocyclic Aromatic Amines OR SE reaction (CYP450-activated heterocyclic amines) OR SE reaction (CYP450-activated heterocyclic amines) >> Direct attack of arylnitrenium cation to the C8 position of nucleoside base OR SE reaction (CYP450-activated heterocyclic amines) >> Direct attack of arylnitrenium cation to the C8 position of nucleoside base >> Heterocyclic Aromatic Amines OR SR reaction (peroxidase-activated heterocyclic amines) OR SR reaction (peroxidase-activated heterocyclic amines) >> Direct attack of arylnitrenium radical to the C8 position of nucleoside base OR SR reaction (peroxidase-activated heterocyclic amines) >> Direct attack of arylnitrenium radical to the C8 position of nucleoside base >> Heterocyclic Aromatic Amines by Protein binding alerts for Chromosomal aberration by OASIS v1.1

Domain logical expression index: "n"

Referential boundary: The target chemical should be classified as Bioavailable by Lipinski Rule Oasis ONLY

Domain logical expression index: "o"

Referential boundary: The target chemical should be classified as Alcohol, olefinic attach [-OH] AND Aliphatic Nitrogen, one aromatic attach [-N] AND Aromatic Carbon [C] AND Azo [-N=N-] AND Hydroxy, aromatic attach [-OH] AND Hydroxy, sulfur attach [-OH] AND Miscellaneous sulfide (=S) or oxide (=O) AND Olefinic carbon [=CH- or =C<] AND Oxygen, one aromatic attach [-O-] AND Suflur {v+4} or {v+6} AND Sulfinic acid [-S(=O)OH] AND Sulfonate, aromatic attach [-SO2-O] by Organic functional groups (US EPA) ONLY

Domain logical expression index: "p"

Similarity boundary:Target: Oc1c2ccccc2c(S(O)(=O)=O)cc1N=Nc1ccc(S(O)(=O)=O)c2ccccc12
Threshold=30%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization

Domain logical expression index: "q"

Referential boundary: The target chemical should be classified as No alert found by rtER Expert System ver.1 - USEPA

Domain logical expression index: "r"

Referential boundary: The target chemical should be classified as Alkylphenols OR Multi Cyclic Hydrocarbons by rtER Expert System ver.1 - USEPA

Domain logical expression index: "s"

Referential boundary: The target chemical should be classified as No Data by Ultimate biodeg

Domain logical expression index: "t"

Referential boundary: The target chemical should be classified as 1 to 10 days by Ultimate biodeg

Domain logical expression index: "u"

Referential boundary: The target chemical should be classified as Not categorized by US-EPA New Chemical Categories

Domain logical expression index: "v"

Referential boundary: The target chemical should be classified as Lanthanides or Rare Earth Metals by US-EPA New Chemical Categories

Domain logical expression index: "w"

Referential boundary: The target chemical should be classified as No alert found by Carcinogenicity (genotox and nongenotox) alerts by ISS

Domain logical expression index: "x"

Referential boundary: The target chemical should be classified as Metals, oxidative stress (Nongenotox) OR Structural alert for nongenotoxic carcinogenicity by Carcinogenicity (genotox and nongenotox) alerts by ISS

Domain logical expression index: "y"

Referential boundary: The target chemical should be classified as Reactive unspecified by Acute aquatic toxicity MOA by OASIS ONLY

Domain logical expression index: "z"

Referential boundary: The target chemical should be classified as Aromatic compound AND Azo compound AND Hydroxy compound AND Phenol AND Sulfonic acid AND Sulfonic acid derivative by Organic functional groups, Norbert Haider (checkmol) ONLY

Domain logical expression index: "aa"

Parametric boundary:The target chemical should have a value of log Kow which is >= 0.528

Domain logical expression index: "ab"

Parametric boundary:The target chemical should have a value of log Kow which is <= 2.97

Interpretation of results:

other: not irritating

Conclusions:

Dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated to be not irritating to the skin of New Zealand White rabbits.

Executive summary:

The dermal irritation potential of dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated using OECD QSAR toolbox v3.3 with logPow as the primary descriptor.

Dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated to be not irritating to the skin of New Zealand White rabbits.

Based on the estimated results, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be considered to be not irritating to skin and can be classified under the category “Not Classified” as per CLP regulation.

Endpoint conclusion:

no adverse effect observed (not irritating)

Reference

Endpoint:

eye irritation: in vivo

Type of information:

(Q)SAR

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification

Justification for type of information:

data is from OECD QSAR toolbox v3.3 and the QMRF report has been attached

Qualifier:

according to guideline

Guideline:

other: Estimated data

Principles of method if other than guideline:

Prediction was done using OECD QSAR toolbox v3..3

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of the test material: Dialuminium tris(4-hydroxy-3-((4-sulphonato-1-naphthyl)azo)naphthalenesulphonate)
- IUPAC name: dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate]
- Molecular formula: C20H14N2O7S22/3Al
- Molecular weight: 1423.3254 g/mol
- Substance type: Organic
- Smiles: c1cc2c(ccc(c2cc1)S(=O)(=O)[O-])/N=N/c3c(c4c(c(c3)S(=O)(=O)[O-])cccc4)O.c1cc2c(ccc(c2cc1)S(=O)(=O)[O-])/N=N/c3c(c4c(c(c3)S(=O)(=O)[O-])cccc4)O.c1cc2c(ccc(c2cc1)S(=O)(=O)[O-])/N=N/c3c(c4c(c(c3)S(=O)(=O)[O-])cccc4)O.[Al+3].[Al+3]

Species:

rabbit

Strain:

New Zealand White

Details on test animals or tissues and environmental conditions:

no data available

Vehicle:

unchanged (no vehicle)

Controls:

not specified

Amount / concentration applied:

0.1 ml

Duration of treatment / exposure:

1 second

Observation period (in vivo):

1,24,48 and 72 hours

Duration of post- treatment incubation (in vitro):

no data available

Number of animals or in vitro replicates:

3

Details on study design:

no data available

Other effects / acceptance of results:

no data available

Irritation parameter:

overall irritation score

Basis:

mean

Time point:

72 h

Reversibility:

not specified

Remarks on result:

no indication of irritation

Irritant / corrosive response data:

no irritation observed

Estimation method: Takes mode value from the 7 nearest neighbours
Domain logical expression:Result: In Domain

((((((("a" or "b" or "c" or "d" or "e" ) and ("f" and ( not "g") ) ) and ("h" and ( not "i") ) ) and ("j" and ( not "k") ) ) and ("l" and ( not "m") ) ) and "n" ) and ("o" and "p" ) )

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Naphthalene sulfonic acids, condensates by OECD HPV Chemical Categories

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as Aromatic compound OR Azo compound OR Hydroxy compound OR Phenol OR Sulfonic acid OR Sulfonic acid derivative by Organic functional groups, Norbert Haider (checkmol) ONLY

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Alcohol, olefinic attach [-OH] OR Aliphatic Nitrogen, one aromatic attach [-N] OR Aromatic Carbon [C] OR Azo [-N=N-] OR Hydroxy, aromatic attach [-OH] OR Hydroxy, sulfur attach [-OH] OR Miscellaneous sulfide (=S) or oxide (=O) OR Olefinic carbon [=CH- or =C<] OR Oxygen, one aromatic attach [-O-] OR Suflur {v+4} or {v+6} OR Sulfinic acid [-S(=O)OH] OR Sulfonate, aromatic attach [-SO2-O] by Organic functional groups (US EPA) ONLY

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as Azo OR Fused carbocyclic aromatic OR Overlapping groups OR Phenol OR Sulfonic acid by Organic Functional groups (nested) ONLY

Domain logical expression index: "e"

Referential boundary: The target chemical should be classified as Aryl OR Azo OR Fused carbocyclic aromatic OR Naphtalene OR Phenol OR Sulfonic acid by Organic Functional groups ONLY

Domain logical expression index: "f"

Referential boundary: The target chemical should be classified as No alert found by DNA binding by OASIS v.1.3

Domain logical expression index: "g"

Referential boundary: The target chemical should be classified as AN2 OR AN2 >> Michael-type addition, quinoid structures OR AN2 >> Michael-type addition, quinoid structures >> Quinoneimines OR AN2 >> Nucleophilic addition to alpha, beta-unsaturated carbonyl compounds OR AN2 >> Nucleophilic addition to alpha, beta-unsaturated carbonyl compounds >> alpha, beta-Unsaturated Aldehydes OR AN2 >> Schiff base formation OR AN2 >> Schiff base formation >> alpha, beta-Unsaturated Aldehydes OR Michael addition OR Michael addition >> Quinone type compounds OR Michael addition >> Quinone type compounds >> Quinone methides OR Non-covalent interaction OR Non-covalent interaction >> DNA intercalation OR Non-covalent interaction >> DNA intercalation >> DNA Intercalators with Carboxamide Side Chain OR Non-covalent interaction >> DNA intercalation >> Fused-Ring Primary Aromatic Amines OR Radical OR Radical >> Radical mechanism via ROS formation (indirect) OR Radical >> Radical mechanism via ROS formation (indirect) >> Fused-Ring Primary Aromatic Amines OR Radical >> Radical mechanism via ROS formation (indirect) >> Single-Ring Substituted Primary Aromatic Amines OR Radical >> ROS formation after GSH depletion OR Radical >> ROS formation after GSH depletion (indirect) OR Radical >> ROS formation after GSH depletion (indirect) >> Quinoneimines OR Radical >> ROS formation after GSH depletion >> Quinone methides OR SN1 OR SN1 >> Alkylation after metabolically formed carbenium ion species OR SN1 >> Alkylation after metabolically formed carbenium ion species >> Polycyclic Aromatic Hydrocarbon Derivatives OR SN1 >> Nucleophilic attack after metabolic nitrenium ion formation OR SN1 >> Nucleophilic attack after metabolic nitrenium ion formation >> Fused-Ring Primary Aromatic Amines OR SN1 >> Nucleophilic attack after metabolic nitrenium ion formation >> Single-Ring Substituted Primary Aromatic Amines OR SN2 OR SN2 >> Alkylation, direct acting epoxides and related OR SN2 >> Alkylation, direct acting epoxides and related >> Epoxides and Aziridines OR SN2 >> Alkylation, direct acting epoxides and related after P450-mediated metabolic activation OR SN2 >> Alkylation, direct acting epoxides and related after P450-mediated metabolic activation >> Polycyclic Aromatic Hydrocarbon Derivatives OR SN2 >> Direct acting epoxides formed after metabolic activation OR SN2 >> Direct acting epoxides formed after metabolic activation >> Quinoline Derivatives OR SN2 >> SN2 at an activated carbon atom OR SN2 >> SN2 at an activated carbon atom >> Quinoline Derivatives by DNA binding by OASIS v.1.3

Domain logical expression index: "h"

Referential boundary: The target chemical should be classified as Not possible to classify according to these rules by DPRA Cysteine peptide depletion

Domain logical expression index: "i"

Referential boundary: The target chemical should be classified as High reactive OR High reactive >> alpha,beta-carbonyl compounds with polarized multiple bonds OR High reactive >> Vinyl pyridines OR Low reactive OR Low reactive >> Sulfanilic acid derivatives OR Moderate reactive OR Moderate reactive >> Activated 1,3,5-triazine derivatives by DPRA Cysteine peptide depletion

Domain logical expression index: "j"

Referential boundary: The target chemical should be classified as Non binder, impaired OH or NH2 group by Estrogen Receptor Binding

Domain logical expression index: "k"

Referential boundary: The target chemical should be classified as Moderate binder, NH2 group OR Moderate binder, OH grooup OR Non binder, MW>500 OR Non binder, non cyclic structure OR Non binder, without OH or NH2 group OR Strong binder, NH2 group OR Strong binder, OH group OR Very strong binder, OH group OR Weak binder, NH2 group OR Weak binder, OH group by Estrogen Receptor Binding

Domain logical expression index: "l"

Referential boundary: The target chemical should be classified as No alert found by Carcinogenicity (genotox and nongenotox) alerts by ISS

Domain logical expression index: "m"

Referential boundary: The target chemical should be classified as Aromatic diazo (Genotox) OR Hydrazine (Genotox) OR Primary aromatic amine,hydroxyl amine and its derived esters (Genotox) OR Structural alert for genotoxic carcinogenicity by Carcinogenicity (genotox and nongenotox) alerts by ISS

Domain logical expression index: "n"

Referential boundary: The target chemical should be classified as Bioavailable by Lipinski Rule Oasis ONLY

Domain logical expression index: "o"

Parametric boundary:The target chemical should have a value of log Kow which is >= 0.476

Domain logical expression index: "p"

Parametric boundary:The target chemical should have a value of log Kow which is <= 4.56

Interpretation of results:

other: not irritating

Conclusions:

Dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated to be not irritating to the eyes of New Zealand White rabbits.

Executive summary:

The ocular irritation potential of dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated using OECD QSAR toolbox v3.3 with logPow as the primary descriptor.

Dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was estimated to be not irritating to the eyes of New Zealand White rabbits.

Based on the estimated results, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be considered to be not irritating to eyes and can be classified under the category “Not Classified” as per CLP regulation.

Endpoint conclusion:

no adverse effect observed (not irritating)

Endpoint conclusion:

no study available

Skin Irritation:

In different studies, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] has been investigated for potential for dermal irritation to a greater or lesser extent. The studies are based on in vivo experiments along with predicted data for target chemical and its structurally similar read across substances, Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo] naphthalenesulphonate [CAS: 3567-69-9] and Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate [CAS: 4548-53-2]. The predicted data using the OECD QSAR toolbox has also been compared with the experimental data.

In a prediction done by SSS (2017) using the OECD QSAR toolbox with log kow as the primary descriptor, the skin irritation potential was estimated fordialuminium tris[4-hydroxy-3-[(4 -sulphonato-1-naphthyl)azo]naphthalenesulphonate]. It was estimated thatdialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was not irritating to skin of New Zealand White rabbits.

This result is supported by the experimental study conductedin an OECD GLP laboratory (Sustainability Support Services (Europe) AB has the letter of access) for thestructurally similar read across substance, Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo] naphthalenesulphonate [CAS: 3567-69-9]. The study was performed as per OECD Guidelines 402 and complying to the GLP procedures. The test item was applied to shorn skin of 5 male and 5 female Sprague Dawley rats at 2000 mg/kg body weight. Administration of the test item at 2000 mg/kg did not result in any skin reaction at the site of application during the study period of 14 days. Administration of the test item did not result in any signs of toxicity and mortality during the study period of 14 days. Animals exhibited normal body weight gain through the study period of 14 days. Gross pathological examination did not reveal any abnormalities attributable to the treatment. From the study, it can be concluded that the test substance ‘Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo] naphthalenesulphonate’ is nonirritant to the skin of Sprague Dawley rats when applied to the shorn skin of 5 male and 5 female animals at the tested dose level of 2000 mg/kg body weight. Also the erythema and edema score of rats was calculated as 0. Thus it can be concluded that the substance Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo] naphthalenesulphonate can be classified under the category "Not Classified".

These results are also supported by theexperimental study conductedin an OECD GLP laboratory (Sustainability Support Services (Europe) AB has the letter of access) for the structurally similar read across substance, Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate [CAS: 4548-53-2]. The study was performed as per OECD Guidelines 402 and complying to the GLP procedures. The test item was applied to shorn skin of 5 male and 5 Sprague Dawley rats at 2000 mg/kg body weight. Administration of the test item at 2000 mg/kg did not result in any skin reaction at the site of application during the study period of 14 days. Administration of the test item did not result in any signs of toxicity and mortality during the study period of 14 days. Animals exhibited normal body weight gain through the study period of 14 days. Gross pathological examination did not reveal any abnormalities attributable to the treatment. From the study, it can be concluded that the test substance ‘Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4 -hydroxynaphthalene-1-sulphonate’ is nonirritant to the skin of Sprague Dawley rats when applied to the shorn skin of 5 male and 5 female animals at the tested dose level of 2000 mg/kg body weight. Also the erythema and edema score of rats was calculated as 0. Thus it can be concluded that the substance, Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxy naphthalene-1-sulphonate can be classified under the category "Not Classified".

Based on the available data for the target and read across substances and applying the weight of evidence approach, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be considered to be not irritating to skin.Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified”.

Eye Irritation:

In different studies, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] has been investigated for potential for ocular irritation to a greater or lesser extent. The studies are based on in vivo and in vitro experiments along with predicted data for target chemical and its structurally similar read across substances, Disodium 3-[(2,4 -dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate [CAS: 4548-53-2] and 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt (Acid Red 18) [2611-82-7]. The predicted data using the OECD QSAR toolbox has also been compared with the experimental data.

In a prediction done by SSS (2017) using the OECD QSAR toolbox with log kow as the primary descriptor, the ocular irritation potential was estimated fordialuminium tris[4-hydroxy-3 -[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate]. It was estimated thatdialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] was not irritating to eyes of New Zealand White rabbits.

This result is supported by the experimental study summarized in Scientific Committee on Cosmetology (seventh series), 1988; for the structurally similar read across substance, Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate [CAS: 4548-53-2]. Ponceau SX 5% in formulation was instilled into the eyes of rabbits and observed for signs of irritation (duration not mentioned). Ponceau SX 5% in formulation did not cause any irritation to rabbit eyes.

Hence, Ponceau SX can be considered not irritating to rabbit eyes.

These results are supported by the experimental study summarized in THE SCIENTIFIC COMMITTEE ON COSMETIC PRODUCTS AND NON-FOOD PRODUCTS (SCCNFP), last updated 23 April 2004; for the structurally similar read across substance, 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt (Acid Red 18) [2611-82-7]. The ocular irritation was assessed by determining the Cytotoxicity in the neutral red uptake assay (NRU) on human keratinocytes with the modification that human keratinocytes of the HaCaT cell line were used. The treatment was performed in serum-free culture medium. Doses from 681 – 10000 μg/ml [1% in water] were applied together with appropriate controls. Two independent NRU assays with identical doses were performed. No NRU-50 value could be determined from the cytotoxicity curves as the viability was still 61% in the first assay and 70% in the second, so the NRU-50 was reported to be > 10000 μg/ml.

Hence, Acid red 18 can be considered not irritating to Human Keratinocytes in the neutral red uptake assay.

Based on the available data for the target and read across substances and applying the weight of evidence approach, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be considered to be not irritating to eyes.Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified”.

Based on the available information, dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] is not likely to cause any irritation to eyes and skin.

Hence,dialuminium tris[4-hydroxy-3-[(4-sulphonato-1-naphthyl)azo]naphthalenesulphonate] can be classified under the category “Not Classified” as per CLP regulation.