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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Genetic toxicity: in vitro

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Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Type of information:
experimental study
Adequacy of study:
key study
Study period:
This test represents the results of two independent studies. 20th June 1985 to 24th June 1985 24th May 1989 to 1st June 1989
Reliability:
1 (reliable without restriction)

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989
Reference Type:
study report
Title:
Unnamed
Year:
1985
Report date:
1987

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Internal method in accordance with standard operating procedures (see comments).
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Ammonium 7-(2,6-dimethyl-8-(2,2-dimethylbutyryloxy)-1,2,6,7,8,8a-hexahydro-1-naphthyl)-3,5-dihydroxyheptanoate
EC Number:
404-520-2
EC Name:
Ammonium 7-(2,6-dimethyl-8-(2,2-dimethylbutyryloxy)-1,2,6,7,8,8a-hexahydro-1-naphthyl)-3,5-dihydroxyheptanoate
Cas Number:
139893-43-9
Molecular formula:
C25 H43 O6 N
IUPAC Name:
ammonium 7-{8-[(2,2-dimethylbutanoyl)oxy]-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl}-3,5-dihydroxyheptanoate
Test material form:
solid: particulate/powder

Method

Species / strain
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and E. coli WP2
Details on mammalian cell type (if applicable):
Salmonella typhimurium TA1535, TA97a, TA98 and TA100 E.Coli: WP2, EP2 urvA,
WP2 urvA pKm101
Metabolic activation:
with and without
Metabolic activation system:
S9
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): 30 ... 3000 μg/plate
Concentration range in the main test (without metabolic activation): 30 ... 3000 μg/plate
Vehicle / solvent:
Solvent: Ethanol
Controlsopen allclose all
Negative solvent / vehicle controls:
yes
Remarks:
DMSO
Positive controls:
yes
Positive control substance:
other: Hydrazine sulfate
Negative solvent / vehicle controls:
yes
Remarks:
DMSO
Positive controls:
yes
Positive control substance:
other: 2-aminoanthracene
Details on test system and experimental conditions:
Concentration of the test substance resulting in precipitation: 3000 μg/plate

Results and discussion

Test resultsopen allclose all
Key result
Species / strain:
other: Salmonella typhimurium TA1535, TA97a, TA98 and TA100 E.Coli: WP2, EP2 urvA, WP2 urvA pKm101
Metabolic activation:
with
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Positive controls validity:
valid
Key result
Species / strain:
other: Salmonella typhimurium TA1535, TA97a, TA98 and TA100 E.Coli: WP2, EP2 urvA, WP2 urvA pKm101
Metabolic activation:
without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Positive controls validity:
valid
Additional information on results:
Observations:
No evidence of mutagenic potential of L-654,969 was observed either in the presence or absence of metabolic activation.
Remarks on result:
other: Test system: main test (migrated)

Applicant's summary and conclusion

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