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Toxicological information

Genetic toxicity: in vitro

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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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
The information of this endpoint has been provided by ECHA as a result of an inquiry, thus the full access to data in the report is not accessible to the registrant. However the reliability is estimated to be at level 1: Study conducted in accordance with generally accepted scientific principles. Possible deficiencies do not affect the quality of relevant results.

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1993
Report Date:
1993

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
Qualifier:
according to
Guideline:
EU Method B.13/14 (Mutagenicity - Reverse Mutation Test Using Bacteria)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Reference
Name:
Unnamed
Type:
Constituent

Method

Species / strainopen allclose all
Species / strain:
E. coli WP2 uvr A
Metabolic activation system:
S9 mix
Species / strain:
S. typhimurium TA 1538
Metabolic activation system:
S9 Mix
Species / strain:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Metabolic activation system:
S9 Mix
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): 100-5000 micrograms/plate
Concentration range in the main test (without metabolic activation): 100-5000 micrograms/plate
Vehicle:
Dimethylsulfoxide (DMSO)
Details on test system and conditions:
Concentration of the test substance resulting in precipitation: 1000 micrograms/plate

Results and discussion

Test resultsopen allclose all
Species / strain:
other: as specified above
Metabolic activation:
without
Genotoxicity:
not specified
Cytotoxicity:
yes
Remarks:
(>5000 micrograms/plate)
Remarks on result:
other:
Remarks:
Migrated from field 'Test system'.
Species / strain:
other: as specified above
Metabolic activation:
with
Genotoxicity:
not specified
Cytotoxicity:
yes
Remarks:
(>5000 micrograms/plate)
Remarks on result:
other:
Remarks:
Migrated from field 'Test system'.
Species / strain:
other: as specified above
Metabolic activation:
without
Genotoxicity:
not specified
Cytotoxicity:
yes
Remarks:
(>5000 micrograms/plate)
Remarks on result:
other:
Remarks:
Migrated from field 'Test system'.
Species / strain:
other: as specified above
Metabolic activation:
with
Genotoxicity:
not specified
Cytotoxicity:
yes
Remarks:
(>5000 micrograms/plate)
Remarks on result:
other:
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information):
negative without metabolic activation
negative with metabolic activation