Registration Dossier
Registration Dossier
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EC number: 611-342-0 | CAS number: 55974-25-9
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
- Study period:
- 2002
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study (OECD 471) but full details are not available. Therefore the reliability is with restrictions.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- GLP compliance:
- not specified
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- 7-methoxy-4,4-dimethyl-3,4-dihydro-1H-2-benzopyran-1,3-dione
- EC Number:
- 611-342-0
- Cas Number:
- 55974-25-9
- Molecular formula:
- C12 H12 O4
- IUPAC Name:
- 7-methoxy-4,4-dimethyl-3,4-dihydro-1H-2-benzopyran-1,3-dione
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): Isochroman puro
- Physical state: powder
- Lot/batch No.: 01002
Constituent 1
Method
Species / strain
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Metabolic activation:
- with and without
- Test concentrations with justification for top dose:
- Dose 1 : 0.1 mL/plaque
Dose 2 : diltution 1/2 dose 1
Dose 3 : diltution 1/2 dose 2 - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: no data
Controls
- Untreated negative controls:
- yes
- Negative solvent / vehicle controls:
- no
- True negative controls:
- no
- Positive controls:
- yes
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in medium; in agar (plate incorporation)
Results and discussion
Test results
- Species / strain:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- 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
- Positive controls validity:
- not specified
- Remarks on result:
- other: all strains/cell types tested
- Remarks:
- Migrated from field 'Test system'.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative
The sample analysed is considered non mutagenic with the dose which could be tested.
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