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EC number: 947-405-7 | CAS number: -
- 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
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- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
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- Additional physico-chemical properties of nanomaterials
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- Nanomaterial Zeta potential
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- Endpoint summary
- Stability
- Biodegradation
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- 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
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- Toxicological Summary
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- Acute Toxicity
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- Genetic toxicity
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- Additional toxicological data

Endpoint summary
Administrative data
Key value for chemical safety assessment
Genetic toxicity in vitro
Description of key information
Gene mutation in vitro:
Ames test:
Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate does not induce gene mutation in the Salmonella typhimurium strains used in the presence and absence of S9 metabolic activation system and hence it is not likely to be mutagenic in vitro.
Link to relevant study records
- Endpoint:
- in vitro gene mutation study in bacteria
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- experimental data of read across substances
- Justification for type of information:
- Data for the target chemical is summarized based on the structurally similar read across chemicals
- Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- other: Refer below principle
- Principles of method if other than guideline:
- WoE report is based on three gene mutation in vitro toxicity studies as- 1 and 2. The Ames Salmonella typhimurium mutagenicity test was conducted for the test chemicals
- GLP compliance:
- not specified
- Type of assay:
- bacterial reverse mutation assay
- Target gene:
- Histidine
- Species / strain / cell type:
- S. typhimurium, other: TA98, TA100, TA102, and TA1535
- Remarks:
- RA 1/ RA 2
- Details on mammalian cell type (if applicable):
- Not applicable
- Additional strain / cell type characteristics:
- not specified
- Cytokinesis block (if used):
- No data
- Metabolic activation:
- with and without
- Metabolic activation system:
- S9 metabolic activation system
- Test concentrations with justification for top dose:
- 1. 5–5000 μg/plate2. 5–5000 μg/plate
- Vehicle / solvent:
- 1 and 2. No data
- Untreated negative controls:
- not specified
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- yes
- Positive control substance:
- 2-acetylaminofluorene
- sodium azide
- mitomycin C
- Remarks:
- RA 1
- Untreated negative controls:
- not specified
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- yes
- Positive control substance:
- sodium azide
- mitomycin C
- other: 2-aminofluorene for all the strains with S9 mix
- Remarks:
- RA 2
- Details on test system and experimental conditions:
- 1 and 2. METHOD OF APPLICATION: in agar (plate incorporation) with preincubation modificationDURATION- Preincubation period: No data available- Exposure duration: 48 h - Expression time (cells in growth medium): 48 h- Selection time (if incubation with a selection agent): No data available- Fixation time (start of exposure up to fixation or harvest of cells): No data availableSELECTION AGENT (mutation assays): No data availableSPINDLE INHIBITOR (cytogenetic assays): No data availableSTAIN (for cytogenetic assays): No data availableNUMBER OF REPLICATIONS: TriplicateNUMBER OF CELLS EVALUATED: No data availableDETERMINATION OF CYTOTOXICITY- Method: mitotic index; cloning efficiency; relative total growth; other: Yes, the cytotoxicity study were carried out by accounting for the microcolonies(histidine auxotroph) in the background lawn. The sparse or absent growth indicated the toxic nature of dyes toward the tester strains.OTHER EXAMINATIONS:- Determination of polyploidy: No data available- Determination of endoreplication: No data available- Other: No data availableOTHER: No data available
- Rationale for test conditions:
- No data
- Evaluation criteria:
- 1 and 2. A dose-related increase (at least 2-fold) in revertant colonies was used to define a statistically significant mutagenic response.
- Statistics:
- No data
- Species / strain:
- S. typhimurium, other: TA98, TA100, TA102, and TA1535
- Remarks:
- RA 1
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- ≥ 500 μg
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- Positive controls validity:
- valid
- Species / strain:
- S. typhimurium, other: TA98, TA100, TA102, and TA1535
- Remarks:
- RA 2
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- ≥ 500 μg
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- Positive controls validity:
- valid
- Additional information on results:
- 1. and 2. No data
- Remarks on result:
- other: No mutagenic potential
- Conclusions:
- Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate does not induce gene mutation in the Salmonella typhimurium strains used in the presence and absence of S9 metabolic activation system and hence it is not likely to be mutagenic in vitro.
- Executive summary:
Data available for the test chemicals was reviewed to determine the mutagenic nature of the test chemical Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate . The studies are as mentioned below:
Ames mutagenicity test was conducted for two test chemicals to evaluate its genotoxic effects when exposed to Salmonella typhimurium strains TA98, TA100, TA102, and TA1535 with dose concentration of 5–5000 µg/plate in plate incorporation assay. The plates were incubated for 48 h. The doses of test chemical, together with the appropriate concurrent positive controls, were tested in triplicate on each tester strain with and without S9 metabolic activation. A dose-related increase (at least 2-fold) in revertant colonies was used to define a statistically significant mutagenic response. Both the test chemicals did not induce gene mutation in the Salmonella typhimurium TA98, TA100, TA102, and TA1535 both in the presence and absence of S9 activation system and hence the chemical is not likely to be a gene mutant.
Based on the data summarized, Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate doesnot induce gene mutation in the Salmonella typhimurium strains used in the presence and absence of S9 metabolic activation system and hence it is not likely to be mutagenic in vitro.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (negative)
Genetic toxicity in vivo
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Gene mutation in vitro:
Data available for the test chemicals was reviewed to determine the mutagenic nature of the test chemical Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate. The studies are as mentioned below:
Ames mutagenicity test was conducted for two test chemicals to evaluate its genotoxic effects when exposed to Salmonella typhimurium strains TA98, TA100, TA102, and TA1535 with dose concentration of 5–5000 µg/plate in plate incorporation assay. The plates were incubated for 48 h. The doses of test chemical, together with the appropriate concurrent positive controls, were tested in triplicate on each tester strain with and without S9 metabolic activation. A dose-related increase (at least 2-fold) in revertant colonies was used to define a statistically significant mutagenic response. Both the test chemicals did not induce gene mutation in the Salmonella typhimurium TA98, TA100, TA102, and TA1535 both in the presence and absence of S9 activation system and hence the chemical is not likely to be a gene mutant.
Based on the data summarized, 2-[(4-methoxybenzyl)carbonohydrazonoyl]-1,3,3-trimethyl-3H-indolium acetate (CAS no 58798 -47 -3) does not induce gene mutation in the Salmonella typhimurium strains used in the presence and absence of S9 metabolic activation system and hence it is not likely to be mutagenic in vitro.
Based on the data available from the read across, Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant as per the criteria mentioned in CLP regulation.
Justification for classification or non-classification
Based on the data available from the read across, Reaction mass of 3H-Indolium, 2-[[2-(4-methoxyphenyl)-2-methylhydrazinylidene]methyl]-1,3,3-trimethyl- & acetate does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant as per the criteria mentioned in CLP regulation.
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