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EC number: 225-733-5 | CAS number: 5039-78-1
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:
- August 1992
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well documented report of a guideline study conducted to GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 992
- Report date:
- 1992
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- [2-(methacryloyloxy)ethyl]trimethylammonium chloride
- EC Number:
- 225-733-5
- EC Name:
- [2-(methacryloyloxy)ethyl]trimethylammonium chloride
- Cas Number:
- 5039-78-1
- Molecular formula:
- C9H18NO2.Cl
- IUPAC Name:
- Trimethyl((2-[(2-methylprop-2-enoyl)oxy]ethyl))azanium chloride
- Details on test material:
- - Name of test material (as cited in study report): MADQUAT MC 75
- Physical state: liquid
- Analytical purity: 76.55%
- Impurities (identity and concentrations): not specified
- Composition of test material, percentage of components: 100%
- Purity test date: not specified
- Lot/batch No.: 30
- Expiration date of the lot/batch: January 1993
- Stability under test conditions: stable
- Storage condition of test material: in the dark at room temperature
Constituent 1
Method
- Target gene:
- His
Species / strainopen allclose all
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Species / strain / cell type:
- S. typhimurium TA 1538
- Metabolic activation:
- with and without
- Metabolic activation system:
- S9-mix (from livers of male Sprague-Dawley rats treated by Aroclor 1254)
- Test concentrations with justification for top dose:
- 312.5, 625, 1250, 2500 and 5000 µg/plate
- Vehicle / solvent:
- distilled water
Controls
- Untreated negative controls:
- yes
- Remarks:
- distilled water
- Negative solvent / vehicle controls:
- yes
- Remarks:
- distilled water
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: without S9-mix . for TA1535 and TA100: sodium azide (1 µg/plate) . for TA1537: 9-aminoacridine (50 µg/plate) . for TA1538 and TA98: 2-nitrofluorene (0.5 µg/plate) with S9-mix . for all strains: 2-anthramine (2 µg/plate)
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in agar (plate incorporation)
Number of independent experiments: 2
DURATION
- Preincubation period: 1 h at 37°C
- Exposure duration: 48 to 72 hours
NUMBER OF REPLICATIONS: 2
DETERMINATION OF CYTOTOXICITY
Bacterial toxicity: determined by examination of background lawn growth in TA100
OTHER EXAMINATIONS:
- Determination of polyploidy: no
- Determination of endoreplication: no - Evaluation criteria:
- Result is considered as positive when the following criteria are observed:
- dose-related increase in revertant colony count (statistically checked)
- the number of revertant colonies per plate with the test substance is more than twice that of negative control.
- reproducibility of results - Statistics:
- Linear regression analysis
Results and discussion
Test resultsopen allclose all
- 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:
- no cytotoxicity
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- not examined
- Species / strain:
- S. typhimurium TA 1538
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- not examined
- Additional information on results:
- No significant increases in the number of revertants were observed in both experiments. No toxicity was observed up to 5000 µg/plate
- 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
MADQUAT MC 75 is negative in the Ames test
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