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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-555-9 | CAS number: 7632-00-0
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Basic information given in tabular form as part of a screening publication and a NTP technical report. No information regarding bacteriotoxicity provided.
Data source
Referenceopen allclose all
- Title:
- No information
- Author:
- NTP Technical Report No. TR-495, May 2001
- Reference Type:
- publication
- Title:
- Salmonella Mutagenicity Tests: V. Results from the Testing of 311 Chemicals
- Author:
- Zeiger, E., Anderson, B., Haworth, S., Lawlor, T., and Mortelmans, K.
- Year:
- 1 992
- Bibliographic source:
- Environ Mol Mutagen 19, Supplement 21:2-141
Materials and methods
- Principles of method if other than guideline:
- according to Zeiger et al. 1992, Environ. Mol. Mutagen. 19 (suppl. 21), 2-141
- GLP compliance:
- yes
- Remarks:
- testing lab.
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- Sodium nitrite
- EC Number:
- 231-555-9
- EC Name:
- Sodium nitrite
- Cas Number:
- 7632-00-0
- Molecular formula:
- HNO2.Na
- IUPAC Name:
- sodium nitrate
- Details on test material:
- sodium nitrite, purity: 99%
Constituent 1
Method
- Target gene:
- S. typhimurium
Species / strain
- Species / strain / cell type:
- other: Salmonella typhimurium TA98, TA100
- Metabolic activation:
- with and without
- Metabolic activation system:
- rat liver S-9 mix
- Test concentrations with justification for top dose:
- 0, 100, 333, 1000, 1666, 3333, 6666, and 10000 µg/plate
Results and discussion
Test results
- Metabolic activation:
- with and without
- Genotoxicity:
- positive
- Additional information on results:
- Sodium nitrite was mutagenic in Salmonella typhimurium strain TA100, with and without Aroclor 1254-induced hamster and rat liver S9 enzymes; no mutagenicity was observed in strain TA98.
- Remarks on result:
- other: other: TA98, TA100
- Remarks:
- Migrated from field 'Test system'.
Applicant's summary and conclusion
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.
