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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 cytogenicity / chromosome aberration study in mammalian cells
Remarks:
Type of genotoxicity: chromosome aberration
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study run to a method comparable with current guidelines and to GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997
Report date:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.10 (Mutagenicity - In Vitro Mammalian Chromosome Aberration Test)
Deviations:
no
GLP compliance:
yes
Type of assay:
other: in vitro mammalian cytogenicity (B10)

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2,4-difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-yl [(1R)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl]methanesulfonate
EC Number:
917-473-2
Cas Number:
188416-34-4
Molecular formula:
C16H14F3N5O . C10H16O4S
IUPAC Name:
2-(2,4-difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-yl [(1R)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl]methanesulfonate
Constituent 2
Reference substance name:
(2RS,3SR)-2-(2,4-difluorophenyl)-3-(5-fluoro-4-pyrimidinyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol (1R)-10- camphorsulphonate
IUPAC Name:
(2RS,3SR)-2-(2,4-difluorophenyl)-3-(5-fluoro-4-pyrimidinyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol (1R)-10- camphorsulphonate
Details on test material:
- Batch No.: 5ABK-003
- Purity: 96.5%

Method

Species / strain
Species / strain / cell type:
mammalian cell line, other: Human lymphocytes
Metabolic activation:
with and without
Metabolic activation system:
Aroclor-induced at liver S9
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): 312.5 ... 2500 µg/ml
Concentration range in the main test (without metabolic activation): 156.3 ... 750 µg/ml
Vehicle / solvent:
dimethyl sulphoxide
Details on test system and experimental conditions:
Exposure period (with metabolic activation): 3 hours
Exposure period (without metabolic activation): 21 hours

Fixation time:
First test, without S-9 mix, 21 hour harvest

First test, with S-9 mix, 21 hour harvest

Second test, without S-9 mix, 21 and 45 hour harvest

Second test, with S-9 mix, 21 and 45 hour harvest

Results and discussion

Test resultsopen allclose all
Species / strain:
mammalian cell line, other: Human lymphocytes
Metabolic activation:
with
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
> 2500 µg/ml
Species / strain:
mammalian cell line, other: Human lymphocytes
Metabolic activation:
without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
> 750 µg/ml
Remarks on result:
other: other: main test
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion

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

Under conditions of this study, the substance was found to be nonmutagenic (negative) in both with metabolic activation and without metabolic activation.