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EC number: 484-420-3 | CAS number: -
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:
- July 12 - 23, 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study has been performed according to OECD guidelines and according to GLP principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.13/14 (Mutagenicity - Reverse Mutation Test Using Bacteria)
- Deviations:
- no
- GLP compliance:
- yes
- Type of assay:
- bacterial reverse mutation assay
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test material Pentaerythritol, reaction product with fatty acids, C8 to 18 (even numbered) and/or branched and/or unsaturated
- Physical state: Pale yellow liquid
- Analytical purity: Not indicated
- Lot/batch No.: OE70406
- Expiration date of the lot/batch: 06 April 2011
- Stability under test conditions: Stable
- Storage condition of test material: In refrigerator (2-8ºC) in the dark
Method
- Target gene:
- - S. typhimurium: Histidine gene
- E. coli: Tryptophan gene
Species / strain
- Species / strain / cell type:
- bacteria, other: Salmonella typhimurium (TA1535, TA1537, TA98 and TA100) and Escherichia coli (WP2uvrA).
- Metabolic activation:
- with and without
- Metabolic activation system:
- rat liver S9-mix induced by a combination of phenobarbital and ß-naphthoflavone
- Test concentrations with justification for top dose:
- Concentration range in the main test (with metabolic activation): 33, 100, 333, 1000 and 3330 µg/plate
Concentration range in the main test (without metabolic activation): 33, 100, 333, 1000 and 3330 µg/plate - Vehicle / solvent:
- Solvent: Ethanol
- Details on test system and experimental conditions:
- Concentration of the test substance resulting in precipitation: 3330 µg/plate
Results and discussion
Test resultsopen allclose all
- Species / strain:
- other: Salmonella typhimurium (TA100) and Escherichia coli (WP2uvrA).
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity, but tested up to precipitating concentrations
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Species / strain:
- other: Salmonella typhimurium (TA1535, TA1537 and TA98)
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity, but tested up to precipitating concentrations
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Species / strain:
- other: Salmonella typhimurium (TA1535, TA1537, TA98 and TA100) and Escherichia coli (WP2uvrA)
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity, but tested up to precipitating concentrations
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- Observations:
All bacterial strains showed negative responses over the entire dose range, i.e. no significant dose-related increase
in the number of revertants in two independently repeated experiments. - Remarks on result:
- other: other: preliminary test
- Remarks:
- Migrated from field 'Test system'.
Any other information on results incl. tables
Comments:
The negative and strain-specific positive control values
were within our laboratory historical control data ranges
indicating that the test conditions were adequate and that
the metabolic activation system functioned properly.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative with and without metabolic activation
All bacterial strains showed negative responses over the entire dose range, i.e. no significant dose-related increase in the number of revertants in two independently repeated experiments.
Based on the results of this study it is concluded that Pentaerythritol, reaction product with fatty acids, C8 to 18 (even numbered) and/or branched and/or unsaturated is not mutagenic in the Salmonella typhimurium reverse mutation assay and in the Escherichia coli reverse mutation assay.
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