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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other:
Title:
Unnamed
Year:
2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Annex V, Method B.13/14 - OECD n.471 Bacterial reverse Mutation test
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
445-510-8
EC Name:
-
Molecular formula:
C26H32O4
IUPAC Name:
Reaction mass of 2-hydroxy-1-{3-[4-(2-hydroxy-2-methylpropanoyl)phenyl]-1,1,3-trimethyl-2,3-dihydro-1H-inden-5-yl}-2-methylpropan-1-one and 2-hydroxy-1-{1-[4-(2-hydroxy-2-methylpropanoyl)phenyl]-1,3,3-trimethyl-2,3-dihydro-1H-inden-5-yl}-2-methylpropan-1-one

Method

Species / strain
Species / strain / cell type:
bacteria, other: Salmonella typhimurium TA 1537, TA 98, TA 1535, TA 100- Eschrichia coli WP2 uvrA
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): >= 33 ... <= 5000 μg/plate
Concentration range in the main test (without metabolic activation): >= 33 ... <= 5000 μg/plate
Vehicle / solvent:
Solvent: DMSO
Details on test system and experimental conditions:
Concentration of the test substance resulting in precipitation: 5000 μg/plate

Results and discussion

Test resultsopen allclose all
Species / strain:
other: as specified above
Metabolic activation:
with
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 μg/plate)
Vehicle controls validity:
other: not available
Untreated negative controls validity:
other: not available
Positive controls validity:
other: not available
Species / strain:
other: as specified above
Metabolic activation:
without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 μg/plate)
Vehicle controls validity:
other: not available
Untreated negative controls validity:
other: not available
Positive controls validity:
other: not available
Species / strain:
other:
Remarks:
as specified above
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 μg/plate)
Vehicle controls validity:
other: not available
Untreated negative controls validity:
other: not available
Positive controls validity:
other: not available
Remarks on result:
other: not available

Any other information on results incl. tables

Observations: No substancial increase in revertant colony numbers of any of five tester strainswas observed following treatment with product at any dose level 33,100,333, 1000, 2500 and 5000 ug/plate

Applicant's summary and conclusion