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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1990
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

Reference
Reference Type:
publication
Title:
Toxicity and Carcinogenicity of Potassium Bromate - A New Renal Carcinogen
Author:
Yuji Kurokawa, Akihiko Maekawa, Michihito Takahashi, and Yuzo Hayashit
Year:
1990
Bibliographic source:
Environmental Health Perspectives Vol. 87, pp. 309-335, 1990

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
Deviations:
not specified
GLP compliance:
no
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium bromate
EC Number:
232-160-4
EC Name:
Sodium bromate
Cas Number:
7789-38-0
Molecular formula:
BrHO3.Na
IUPAC Name:
sodium bromate
Test material form:
solid: granular
Details on test material:
Colorless crystalline powder.

Method

Species / strain
Species / strain / cell type:
other: S. typhimurium TA 97, TA 98, TA 100 and TA 102
Metabolic activation:
with and without
Metabolic activation system:
S9

Results and discussion

Test results
Key result
Species / strain:
other: S. typhimurium TA 97, TA 98, TA 100 and TA 102
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified

Applicant's summary and conclusion

Conclusions:
Under the experimental conditions described, the test item did not demonstrate mutagenic acivity with and without addition of S9 mix.