Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 206-825-4 | CAS number: 378-44-9
Genetic toxicity: in vitro
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:
- 1999
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. Therefore, although the method is unknown, the values presented here are acceptable as they are from a reliable secondary source of biological data.
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 1 999
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- No data on materials and methods are reported in the EMEA report. The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation.
- GLP compliance:
- not specified
- Type of assay:
- bacterial gene mutation assay
Test material
- Reference substance name:
- Betamethasone
- EC Number:
- 206-825-4
- EC Name:
- Betamethasone
- Cas Number:
- 378-44-9
- Molecular formula:
- C22H29FO5
- IUPAC Name:
- 9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione
Constituent 1
Method
Species / strain
- Species / strain / cell type:
- bacteria, other: Salmonella typhimurium TA98, TA100, TA1535, TA1537, TA102 and Escherichia coli WP2 uvrA
- Additional strain / cell type characteristics:
- not specified
- Metabolic activation:
- not specified
Results and discussion
Test results
- Species / strain:
- bacteria, other: Salmonella typhimurium TA98, TA100, TA1535, TA1537, TA102 and Escherichia coli WP2 uvrA
- Metabolic activation:
- not specified
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- not specified
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- Positive controls validity:
- not specified
- Remarks on result:
- other: all strains/cell types tested
- Remarks:
- Migrated from field 'Test system'.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative
Negative results were obtained in this reviewed in vitro gene mutation assay.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
