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EC number: 215-885-0 | CAS number: 1443-80-7
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Endpoint summary
Administrative data
Key value for chemical safety assessment
Genetic toxicity in vitro
Description of key information
Prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for 4'-Cyanoacetophenone (1443-80-7). The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with and without S9 metabolic activation system. 4'-Cyanoacetophenone was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence and absence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro. Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Link to relevant study records
- Endpoint:
- in vitro gene mutation study in bacteria
- 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 version 3.3 and the supporting QMRF report has been attached.
- Qualifier:
- according to guideline
- Guideline:
- other: As mention below
- Principles of method if other than guideline:
- Prediction is done using OECD QSAR Toolbox version 3.3, 2017
- GLP compliance:
- not specified
- Type of assay:
- bacterial reverse mutation assay
- Specific details on test material used for the study:
- Name: 4'-Cyanoacetophenone
InChI:1S/C9H7NO/c1-7(11)9-4-2-8(6-10)3-5-9/h2-5H,1H3
SMILES:CC(=O)c1ccc(C#N)cc1
Molecular Formula: C9H7NO
Molecular Weight: 145.16 g/mole - Target gene:
- Histidine
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Details on mammalian cell type (if applicable):
- Not applicable
- Additional strain / cell type characteristics:
- not specified
- Cytokinesis block (if used):
- not specified
- Metabolic activation:
- with
- Metabolic activation system:
- S9 metabolic activation
- Test concentrations with justification for top dose:
- not specified
- Vehicle / solvent:
- not specified
- Untreated negative controls:
- not specified
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- not specified
- Details on test system and experimental conditions:
- not specified
- Rationale for test conditions:
- not specified
- Evaluation criteria:
- Prediction was done considering a dose dependent increase in the number of revertants/plate.
- Statistics:
- not specified
- Species / strain:
- S. typhimurium, other: TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Metabolic activation:
- with
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- not specified
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- Positive controls validity:
- not specified
- Remarks on result:
- other: No mutagenic effect were observed.
- Conclusions:
- 4'-Cyanoacetophenone (1443-80-7) was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro.
- Executive summary:
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for 4'-Cyanoacetophenone (1443-80-7). The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with S9 metabolic activation system. 4'-Cyanoacetophenone was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro. Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Reference
The
prediction was based on dataset comprised from the following
descriptors: "Gene mutation"
Estimation method: Takes highest mode value from the 7 nearest neighbours
Domain logical expression:Result: In Domain
((((((((((((("a"
or "b" or "c" or "d" )
and ("e"
and (
not "f")
)
)
and ("g"
and (
not "h")
)
)
and ("i"
and (
not "j")
)
)
and ("k"
and (
not "l")
)
)
and "m" )
and "n" )
and ("o"
and (
not "p")
)
)
and ("q"
and (
not "r")
)
)
and ("s"
and (
not "t")
)
)
and ("u"
and (
not "v")
)
)
and "w" )
and ("x"
and "y" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Aromatic compound OR Carbonyl
compound OR Ketone OR Nitrile by Organic functional groups, Norbert
Haider (checkmol) ONLY
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as Acetylenic Carbon [#C] OR
Aliphatic Carbon [CH] OR Aliphatic Carbon [-CH2-] OR Aliphatic Carbon
[-CH3] OR Aromatic Carbon [C] OR Carbonyl, aliphatic attach [-C(=O)-] OR
Carbonyl, olefinic attach [-C(=O)-] OR Carbonyl, one aromatic attach
[-C(=O)-] OR Cyano, aromatic attach [-C#N] OR Miscellaneous sulfide (=S)
or oxide (=O) OR Olefinic carbon [=CH- or =C<] by Organic functional
groups (US EPA) ONLY
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as Aryl OR Ketone OR Nitrile OR
Overlapping groups by Organic Functional groups (nested) ONLY
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Aryl OR Ketone OR Nitrile by
Organic Functional groups ONLY
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OASIS v.1.3
Domain
logical expression index: "f"
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 >> Michael-type addition, quinoid
structures >> Quinones OR AN2 >> Carbamoylation after isocyanate
formation OR AN2 >> Carbamoylation after isocyanate formation >>
N-Hydroxylamines 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 AN2 >> Schiff base
formation >> Dicarbonyl compounds 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 >> Acridone, Thioxanthone, Xanthone and
Phenazine Derivatives OR Non-covalent interaction >> DNA intercalation
>> Aminoacridine DNA Intercalators OR Non-covalent interaction >> DNA
intercalation >> Fused-Ring Primary Aromatic Amines OR Non-covalent
interaction >> DNA intercalation >> Quinones OR Non-specific OR
Non-specific >> Incorporation into DNA/RNA, due to structural analogy
with nucleoside bases OR Non-specific >> Incorporation into DNA/RNA,
due to structural analogy with nucleoside bases >> Specific Imine
and Thione Derivatives OR Radical OR Radical >> Radical mechanism by ROS
formation OR Radical >> Radical mechanism by ROS formation >> Acridone,
Thioxanthone, Xanthone and Phenazine Derivatives OR Radical >> Radical
mechanism via ROS formation (indirect) OR Radical >> Radical mechanism
via ROS formation (indirect) >> Anthrones OR Radical >> Radical
mechanism via ROS formation (indirect) >> Conjugated Nitro Compounds OR
Radical >> Radical mechanism via ROS formation (indirect) >> Fused-Ring
Primary Aromatic Amines OR Radical >> Radical mechanism via ROS
formation (indirect) >> Hydrazine Derivatives OR Radical >> Radical
mechanism via ROS formation (indirect) >> N-Hydroxylamines OR Radical >>
Radical mechanism via ROS formation (indirect) >> Quinones OR Radical >>
Radical mechanism via ROS formation (indirect) >> Specific Imine and
Thione Derivatives 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 carbenium ion formation OR SN1 >> Nucleophilic attack after
carbenium ion formation >> Acyclic Triazenes OR SN1 >> Nucleophilic
attack after carbenium ion formation >> N-Nitroso Compounds 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 >> N-Hydroxylamines OR SN1 >>
Nucleophilic attack after nitrenium and/or carbenium ion formation OR
SN1 >> Nucleophilic attack after nitrenium and/or carbenium ion
formation >> N-Nitroso Compounds OR SN1 >> Nucleophilic attack after
reduction and nitrenium ion formation OR SN1 >> Nucleophilic attack
after reduction and nitrenium ion formation >> Conjugated Nitro
Compounds OR SN1 >> Nucleophilic attack after reduction and nitrenium
ion formation >> Nitrobiphenyls and Bridged Nitrobiphenyls OR SN1 >>
Nucleophilic substitution on diazonium ions OR SN1 >> Nucleophilic
substitution on diazonium ions >> Specific Imine and Thione Derivatives
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: "g"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OECD
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as Acylation OR Acylation >> P450
Mediated Activation to Isocyanates or Isothiocyanates OR Acylation >>
P450 Mediated Activation to Isocyanates or Isothiocyanates >> Formamides
OR 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 >> Arenes OR Michael
addition >> P450 Mediated Activation to Quinones and Quinone-type
Chemicals >> Polycyclic (PAHs) and heterocyclic (HACs) aromatic
hydrocarbons-Michael addition OR Michael addition >> Polarised
Alkenes-Michael addition OR Michael addition >> Polarised
Alkenes-Michael addition >> Alpha, beta- unsaturated ketones OR Schiff
base formers OR Schiff base formers >> Direct Acting Schiff Base Formers
OR Schiff base formers >> Direct Acting Schiff Base Formers >>
Alpha-beta-dicarbonyl OR SN1 OR SN1 >> Carbenium Ion Formation OR SN1 >>
Carbenium Ion Formation >> Polycyclic (PAHs) and heterocyclic (HACs)
aromatic hydrocarbons-SN1 OR SN1 >> Iminium Ion Formation OR SN1 >>
Iminium Ion Formation >> Aliphatic tertiary amines OR SN1 >> Nitrenium
Ion formation OR SN1 >> Nitrenium Ion formation >> Aromatic azo OR SN1
>> Nitrenium Ion formation >> Primary aromatic amine OR SN1 >> Nitrenium
Ion formation >> Tertiary aromatic amine OR SN2 OR SN2 >> Direct Acting
Epoxides and related OR SN2 >> Direct Acting Epoxides and related >>
Sulfuranes by DNA binding by OECD
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Non binder, without OH or NH2
group by Estrogen Receptor Binding
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Non binder, impaired OH or NH2
group OR Non binder, MW>500 OR Non binder, non cyclic structure by
Estrogen Receptor Binding
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as No alert found by Protein
binding by OASIS v1.3
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as Acylation OR Acylation >> Ester
aminolysis OR Acylation >> Ester aminolysis >> Dithiocarbamates 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 >> Michael addition on conjugated systems with electron
withdrawing group >> Cyanoalkenes OR Michael Addition >> Polarised
Alkenes OR Michael Addition >> Polarised Alkenes >> Polarised Alkene -
alkenyl pyridines, pyrazines, pyrimidines or triazines OR Michael
Addition >> Quinoide type compounds OR Michael Addition >> Quinoide type
compounds >> Quinone methide(s)/imines; Quinoide oxime structure;
Nitroquinones, Naphthoquinone(s)/imines OR Nucleophilic addition OR
Nucleophilic addition >> Addition to carbon-hetero double bonds OR
Nucleophilic addition >> Addition to carbon-hetero double bonds >>
Ketones OR Schiff base formation OR Schiff base formation >> Direct
acting Schiff base formers OR Schiff base formation >> Direct acting
Schiff base formers >> 1,2-Dicarbonyls and 1,3-Dicarbonyls by Protein
binding by OASIS v1.3
Domain
logical expression index: "m"
Referential
boundary: The
target chemical should be classified as High (Class III) by Toxic hazard
classification by Cramer (original) ONLY
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 Non-Metals by Groups of elements
Domain
logical expression index: "p"
Referential
boundary: The
target chemical should be classified as Alkali Earth OR Halogens OR
Metals OR Transition Metals by Groups of elements
Domain
logical expression index: "q"
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: "r"
Referential
boundary: The
target chemical should be classified as AN2 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 Ar OR Ar >> Radical-type addition to imino tautomer
of acridines OR Ar >> Radical-type addition to imino tautomer of
acridines >> Benzoquinolines and Acridines 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 SN2 OR
SN2 >> Ring opening nucleophilic subsitution involving proteins and
arene oxide derivatives OR SN2 >> Ring opening nucleophilic subsitution
involving proteins and arene oxide derivatives >> Benzoquinolines and
Acridines OR SNAr OR SNAr >> Nucleophilic subsitution on activated
Csp2-atoms in quinolines OR SNAr >> Nucleophilic subsitution on
activated Csp2-atoms in quinolines >> Benzoquinolines and Acridines 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: "s"
Referential
boundary: The
target chemical should be classified as No alert found by in vivo
mutagenicity (Micronucleus) alerts by ISS
Domain
logical expression index: "t"
Referential
boundary: The
target chemical should be classified as H-acceptor-path3-H-acceptor OR
Heterocyclic Polycyclic Aromatic Hydrocarbons OR Polycyclic Aromatic
Hydrocarbons by in vivo mutagenicity (Micronucleus) alerts by ISS
Domain
logical expression index: "u"
Referential
boundary: The
target chemical should be classified as Not categorized by Repeated dose
(HESS)
Domain
logical expression index: "v"
Referential
boundary: The
target chemical should be classified as 3-Methylcholantrene
(Hepatotoxicity) Alert OR Amineptine (Hepatotoxicity) Alert OR Aromatic
hydrocarbons (Liver enzyme induction) Rank C OR Tamoxifen
(Hepatotoxicity) Alert by Repeated dose (HESS)
Domain
logical expression index: "w"
Similarity
boundary:Target:
CC(=O)c1ccc(C#N)cc1
Threshold=10%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization
Domain
logical expression index: "x"
Parametric
boundary:The
target chemical should have a value of log Kow which is >= 0.348
Domain
logical expression index: "y"
Parametric
boundary:The
target chemical should have a value of log Kow which is <= 2.09
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (negative)
Genetic toxicity in vivo
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Prediction model based estimation and data from read across chemical have been reviewed to determine the mutagenic nature of4-acetylbenzonitrile (1443-80-7). The studies are as mentioned below
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for 4'-Cyanoacetophenone (1443-80-7). The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with and without S9 metabolic activation system. 4'-Cyanoacetophenone was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence and absence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro. Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Gene mutation toxicity was predicted for 4'-Cyanoacetophenone (1443-80-7) using the battery approach from Danish QSAR database (2017). The study assumed the use of Salmonella typhimurium bacteria in the Ames test. The end point for gene mutation has been modeled in the Danish QSAR using the three software systems Leadscope, CASE Ultra and SciQSAR. Based on predictions from these three systems, a fourth and overall battery prediction is made. The battery prediction is made using the so called Battery algorithm. With the battery approach it is in many cases possible to reduce “noise” from the individual model estimates and thereby improve accuracy and/or broaden the applicability domain. Gene mutation toxicity study as predicted by 4'-Cyanoacetophenone is negative and hence the chemical is predicted to not classify as a gene mutant in vitro.
In a study for structurally and functionally similar read across chemical, Gene mutation toxicity study was performed by National Institute of Technology and Evaluation (Japan chemicals collaborative knowledge database , 2017)to determine the mutagenic nature ofTerephthalonitrile (623-26-7). The read across substances share high similarity in structure and log kow .Therefore, it is acceptable to derive information on mutation from the analogue substance. Genetic toxicity in vitro study was assessed for Terephthalonitrile. For this purpose Ames test was performed according to Guidelines for Screening Mutagenicity Testing of Chemicals (Japan).The test material was exposed to Salmonella typhimurium TA100, TA1535, TA98, TA1537, Escherichia coli WP2 uvrA in the presence and absence of metabolic activation S9. The concentration of test material used in the presence and absence of metabolic activation were0, 312.5, 625, 1250, 2500 and 5000 µg/plate . No mutagenic effects were observed in all strains, in the presence and absence of metabolic activation. Therefore Terephthalonitrile was considered to be non mutagenic in Salmonella typhimurium TA100, TA1535, TA98, TA1537, Escherichia coli WP2 uvrA by AMES test. Hence the substance cannot be classified as gene mutant in vitro.
In a study for structurally and functionally similar read across chemical, Gene mutation toxicity study was performed by Errol Zeiger et.al. (Environmental and Molecular Mutagenesis, 1988) to determine the mutagenic nature of Benzonitrile(100-47-0). The read across substances share high similarity in structure and log kow .Therefore, it is acceptable to derive information on mutation from the analogue substance. The test chemical Benzonitrile was studied for its ability to induce mutations in strains of Salmonella typhimurium. The test compound was tested at concentration of 0, 33, 100, 333, 1000 or 2000 µg/plate in lab 1 and 0, 33, 100, 333, 1666 or 3000 µg/plate in lab 2 using Salmonella typhimurium TA100, TA1535, TA97 and TA98 in the presence and absence of rat and hamster liver S9 metabolic activation system. Preincubation assay was performed. The test compound Benzonitrile is determined to be non mutagenic to the Salmonella typhimurium TA100, TA1535, TA97 and TA98 in the presence and absence of rat and hamster liver S9 metabolic activation system. Hence the test chemical is not likely to be a mutagen in vitro.
Based on the data available for the target chemical and its read across substance and applying weight of evidence 4'-Cyanoacetophenone (1443-80-7)does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant in vitro.
Justification for classification or non-classification
Thus based on the above annotation and CLP criteria for the target chemical . 4'-Cyanoacetophenone (1443-80-7)does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant in vitro.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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