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EC number: 204-841-6 | CAS number: 127-41-3
- 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
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Data is from peer reviewed publication
Data source
Reference
- Reference Type:
- publication
- Title:
- Gene mutation toxicity study of the test chemical
- Author:
- Kasamaki et al
- Year:
- 1 982
- Bibliographic source:
- Mutation Research
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Principles of method if other than guideline:
- The genotoxicity of test substance widely used in everyday foods was studied by a bacterial mutation test in the Salmonella/microsome system
- GLP compliance:
- not specified
- Type of assay:
- bacterial gene mutation assay
Test material
- Reference substance name:
- 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one
- EC Number:
- 204-841-6
- EC Name:
- 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one
- Cas Number:
- 127-41-3
- Molecular formula:
- C13H20O
- IUPAC Name:
- 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one
- Details on test material:
- - Name of test material: α- Ionone
- Molecular formula: C13H20O
- Molecular weight: 192.3 g/mol
- Substance type: organic
- Physical state: Solid
- Purity: No data available
- Impurities (identity and concentrations): No data available
Constituent 1
Method
- Target gene:
- Histidine
Species / strain
- Species / strain / cell type:
- S. typhimurium, other: TA98 and TA100
- 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:
- 0.01 to 50 μg/pl
- Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: Sterilized DMSO
- Justification for choice of solvent/vehicle: The test chemical was soluble in DMSO
Controls
- Untreated negative controls:
- yes
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- yes
- Positive control substance:
- 4-nitroquinoline-N-oxide
- 2-nitrofluorene
- benzo(a)pyrene
- other: Aflatoxin B1
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in agar (plate incorporation)
DURATION
- Preincubation period: No data available
- Exposure duration: No data available
- Expression time (cells in growth medium): No data available
- 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 available
SELECTION AGENT (mutation assays): No data available
SPINDLE INHIBITOR (cytogenetic assays): No data available
STAIN (for cytogenetic assays): No data available
NUMBER OF REPLICATIONS: No data available
NUMBER OF CELLS EVALUATED: No data available
DETERMINATION OF CYTOTOXICITY
- Method: mitotic index; cloning efficiency; relative total growth; other: No data available
OTHER EXAMINATIONS:
- Determination of polyploidy: No data available
- Determination of endoreplication: No data available
- Other:
OTHER: No data available - Evaluation criteria:
- For mutagenic potency, a positive result was defined as a reproducible, dose-related increase in the number of revertant colonies per plate, and a greater than 2-fold increase in spontaneous mutation rate was obtained, according to the protocol of Ames
- Statistics:
- No data available
Results and discussion
Test results
- Species / strain:
- S. typhimurium, other: TA98 and TA100
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- not specified
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- True negative controls validity:
- not specified
- Positive controls validity:
- valid
- Additional information on results:
- No data available
- Remarks on result:
- other: No mutagenic potential
Applicant's summary and conclusion
- Conclusions:
- Gene toxicity in vitro profile for the test material is negative in the presence and absence of rat liver microsome fraction S9 using Salmonella typhimurium strains TA98 and TA100 and hence it is not likely to classify as a gene mutant in vitro.
- Executive summary:
The genotoxicity of the flavoring agent widely used in everyday foods was studied by a bacterial mutation test in the Salmonella/microsome system. The study was performed using Salmonella typhimurium strains TA98 and TA100 in the presence and absence of S9 metabolic activation system. The test chemical was dissolved in DMSO and used at dose levels of 0.01 to 50 μg/pl. In the mutation test, the test material did not exhibit significant induction of his+revertants in Salmonella typhimurium TA98 or TA100, either with or without rat liver microsome as the metabolic activation system. Gene toxicity in vitro profile for the test material test substance is negative with and without rat liver microsome fraction S9 using Salmonella typhimurium strains TA98 and TA100 and hence the test chemical is not likely to classify for gene mutation in vitro.
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