Registration Dossier
Registration Dossier
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EC number: 206-674-4 | CAS number: 366-18-7
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:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- No data on testing principles were given.
- GLP compliance:
- no
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- 2,2'-bipyridyl
- EC Number:
- 206-674-4
- EC Name:
- 2,2'-bipyridyl
- Cas Number:
- 366-18-7
- Molecular formula:
- C10H8N2
- IUPAC Name:
- 2,2'-bipyridine
- Details on test material:
- - Name of test material (as cited in study report): 2,2'-bipyridyl
- Lot/batch No.: GT/90/0011
Constituent 1
Method
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
- Test concentrations with justification for top dose:
- no data
- Vehicle / solvent:
- no data
Controls
- Untreated negative controls:
- not specified
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- not specified
- Positive control substance:
- not specified
- Details on test system and experimental conditions:
- no data
- Evaluation criteria:
- no data
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:
- not specified
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- Positive controls validity:
- not specified
- Species / strain:
- S. typhimurium TA 1538
- 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:
- The test item 2,2'-bipyridine was found to be negative in in vitro bacterial reverse mutation assays with and without metabolic activation (S9) in the Salmonella typhimurium tester strains TA98, TA100, TA1535, TA1537, and TA1538.
- Executive summary:
Genetic toxicity of the test item 2,2’-bipyridine were assessed in an in vitro bacterial reverse mutation assay (Ames test) on Salmonella typhimurium. The following five tester strains were used: TA98, TA100, TA1535, TA1537, and TA1538. S9 was used as metabolic activation system.
The test item 2,2’-bipyridine was reported to be negative in all five tester strains without and with metabolic activation.
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