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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
1994
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: According to OECD 471. Study conducted under GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994
Report date:
1994

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Reference substance name:
Asta-C15-Acetal (C15-Acl)
IUPAC Name:
Asta-C15-Acetal (C15-Acl)
Constituent 2
Reference substance name:
94/29
IUPAC Name:
94/29
Details on test material:
- NAME OF TEST SUBSTANCE: ASTA-C15-ACETAL (C15-ACL)
- SUBSTANCE NUMBER: 94/29
- LOT NUMBER: 25656/133 S
- DATE OF MANUFACTURING: 07-FEB-1994
- PHYSICAL STATE/APPEARANCE: LIQUID, OILY, YELLOW
- STORAGE CONDITIONS: ROOM TEMPERATURE, EXCLUSION OF LIGHT

Method

Target gene:
his
Species / strain
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Metabolic activation:
with and without
Metabolic activation system:
Aroclor induced rat liver S-9 fractions.
Test concentrations with justification for top dose:
20; 100; 500; 2,500; 5,000 ug/plate
Vehicle / solvent:
DMSO
Details on test system and experimental conditions:
Tester strains, doses, number of plates

1st Experiment:
- Strains: TA 1535, TA 100, TA 1537, TA 98
- Doses: 0, 20, 100, 500, 2500 and 5000 ug/plate
- Vehicle: DMSO
- Type of test test conditions: standard plate test with and withtout S-9 mix
- Number of plates: 3 test plates per dose or per control

2nd Experiment:
- Strains: TA 1535, TA 100, TA 1537, TA 98
- Doses: 0, 20, 100, 500, 2500 and 5000 ug/plate
- Vehicle: DMSO
- Type of test, test conditions: preincubation test with and without S-9 mix
- Number of plates: 3 test plates per dose or per control
Evaluation criteria:
In general, a substance to be characterized as positive in the AMES test has to fulfill the following requirements:
- doubling of the spontaneous mutation rate (control)
- close-response relationship
- reproducibility of the results.

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:
other: Bacteriotoxicity observed in the standard plate test with TA 1537 at 5,000 ug/plate (+/- S-9 mix) and TA 100 at doses >= 500 ug/plate (only + S-9 mix).
Vehicle controls validity:
valid
Untreated negative controls validity:
valid
Positive controls validity:
valid
Remarks on result:
other: all strains/cell types tested
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion

Conclusions:
According to the results of the present study, the test substance Asta-C15-Acetal (C15-Acl) is not mutagenic in the AMES Test under the experimental conditions chosen here.