Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-)

Hydrolysis

Link to relevant study record(s)

Reference

Endpoint:

hydrolysis

Type of information:

(Q)SAR

Adequacy of study:

key study

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:

The supporting QMRF report has been attached

Qualifier:

according to guideline

Guideline:

other: estimated data

Principles of method if other than guideline:

The prediction was done by uisng OECD QSAR tool box v3.4

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test material: Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)] cuprate(3-)
- IUPAC name: Trisodium [2-[[alpha-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro- 4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cupra
- Molecular formula: C24H11Cl3CuN7O9S2.3Na
- Molecular weight: 822.41 g/mole
- Smiles :Clc4c(nc(nc4Cl)Cl)Nc5cc(cc7c5O[Cu]63N7=NC(c2ccccc2)N=N6c1c(cc(cc1)S(=O)(=O)O[Na])C(=O)O3)S(=O)(=O)O[Na]
- Substance type: Organic
- Physical state: Solid

Radiolabelling:

not specified

Analytical monitoring:

not specified

Transformation products:

not specified

Key result

DT50:

151.274 d

Remarks on result:

other: other details not available

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

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

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Michael addition AND Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals AND Michael addition >> P450 Mediated Activation to Quinones and Quinone-type Chemicals >> Arenes by DNA binding by OECD

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as SNAr AND SNAr >> Nucleophilic aromatic substitution on activated aryl and heteroaryl compounds AND SNAr >> Nucleophilic aromatic substitution on activated aryl and heteroaryl compounds >> Activated aryl and heteroaryl compounds by Protein binding by OASIS v1.4

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as SNAr AND SNAr >> Nucleophilic aromatic substitution AND SNAr >> Nucleophilic aromatic substitution >> Halo-pyrimidines by Protein binding by OECD

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as No alert found by DNA binding by OASIS v.1.4

Domain logical expression index: "e"

Referential boundary: The target chemical should be classified as AN2 OR AN2 >> Schiff base formation by aldehyde formed after metabolic activation OR AN2 >> Schiff base formation by aldehyde formed after metabolic activation >> Geminal Polyhaloalkane Derivatives OR AN2 >> Shiff base formation for aldehydes OR AN2 >> Shiff base formation for aldehydes >> Haloalkane Derivatives with Labile Halogen OR Non-covalent interaction OR Non-covalent interaction >> DNA intercalation OR Non-covalent interaction >> DNA intercalation >> Fused-Ring Primary Aromatic Amines OR Radical OR Radical >> Radical mechanism by ROS formation (indirect) or direct radical attack on DNA OR Radical >> Radical mechanism by ROS formation (indirect) or direct radical attack on DNA >> Organic Peroxy Compounds 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) >> Geminal Polyhaloalkane Derivatives OR Radical >> Radical mechanism via ROS formation (indirect) >> Nitroarenes with Other Active Groups OR SN1 OR SN1 >> Carbenium ion formation OR SN1 >> Carbenium ion formation >> Alpha-Haloethers OR SN1 >> Nucleophilic attack after diazonium or carbenium ion formation OR SN1 >> Nucleophilic attack after diazonium or carbenium ion formation >> Nitroarenes with Other Active Groups 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 reduction and nitrenium ion formation OR SN1 >> Nucleophilic attack after reduction and nitrenium ion formation >> Nitroarenes with Other Active Groups OR SN2 OR SN2 >> Acylation involving a leaving group  OR SN2 >> Acylation involving a leaving group  >> Haloalkane Derivatives with Labile Halogen OR SN2 >> Acylation involving a leaving group after metabolic activation OR SN2 >> Acylation involving a leaving group after metabolic activation >> Geminal Polyhaloalkane Derivatives OR SN2 >> Alkylation, direct acting epoxides and related OR SN2 >> Alkylation, direct acting epoxides and related >> Epoxides and Aziridines OR SN2 >> Alkylation, nucleophilic substitution at sp3-carbon atom OR SN2 >> Alkylation, nucleophilic substitution at sp3-carbon atom >> Haloalkane Derivatives with Labile Halogen OR SN2 >> Nucleophilic substitution at sp3 carbon atom after thiol (glutathione) conjugation OR SN2 >> Nucleophilic substitution at sp3 carbon atom after thiol (glutathione) conjugation >> Geminal Polyhaloalkane Derivatives OR SN2 >> SN2 at sp3-carbon atom OR SN2 >> SN2 at sp3-carbon atom >> Alpha-Haloethers OR SN2 >> SN2 attack on activated carbon Csp3 or Csp2 OR SN2 >> SN2 attack on activated carbon Csp3 or Csp2 >> Nitroarenes with Other Active Groups by DNA binding by OASIS v.1.4

Domain logical expression index: "f"

Referential boundary: The target chemical should be classified as Not calculated by Hydrolysis half-life (Kb, pH 7)(Hydrowin) ONLY

Domain logical expression index: "g"

Referential boundary: The target chemical should be classified as Not calculated by Hydrolysis half-life (pH 6.5-7.4) ONLY

Domain logical expression index: "h"

Referential boundary: The target chemical should be classified as Does NOT Biodegrade Fast by Biodeg probability (Biowin 6) ONLY

Domain logical expression index: "i"

Referential boundary: The target chemical should be classified as Does NOT Biodegrade Fast by Biodeg probability (Biowin 1) ONLY

Domain logical expression index: "j"

Referential boundary: The target chemical should be classified as weeks - months by Biodeg primary (Biowin 4) ONLY

Domain logical expression index: "k"

Parametric boundary:The target chemical should have a value of Molecular weight which is >= 183 Da

Domain logical expression index: "l"

Parametric boundary:The target chemical should have a value of Molecular weight which is <= 1.14E003 Da

Validity criteria fulfilled:

not specified

Conclusions:

The half life of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-) was estimated to be 151.27 days. On the basi s of this half life value it is concluded that this test chmeical is not hydrolysable.

Executive summary:

The half life of hydrolysis of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-) (CAS no. 70161 -20 -5) was estimated by using OECD QSAR tool box v3.4 considering seven closest read across chemicals with log Kow as primary descriptor. The half life of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-)  was estimated to be 151.27 days. On the basi s of this half life value it is concluded that this test chmeical is not hydrolysable.

Description of key information

The half life of hydrolysis of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-) (CAS no. 70161 -20 -5) was estimated by using OECD QSAR tool box v3.4 considering seven closest read across chemicals with log Kow as primary descriptor. The half life of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-)  was estimated to be 151.27 days. On the basi s of this half life value it is concluded that this test chemical is not hydrolysable.

Key value for chemical safety assessment

Half-life for hydrolysis:

151.27 d

at the temperature of:

25 °C

Additional information

The half life of hydrolysis of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-) (CAS no. 70161 -20 -5) was estimated by using OECD QSAR tool box v3.4 considering seven closest read across chemicals with log Kow as primary descriptor. The half life of test chemical Trisodium [2-[[α-[[2-hydroxy-5-sulpho-3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]benzyl]azo]-5-sulphobenzoato(5-)]cuprate(3-)  was estimated to be 151.27 days. On the basi s of this half life value it is concluded that this test chemical is not hydrolysable.