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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 gene mutation study in bacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
publication
Title:
Mutagenicity of 1,2-dicarbonyl compounds: maltol, kojic acid, diacetyl and related substances
Author:
Bjeldanes, L.F., Chew, H.
Year:
1979
Bibliographic source:
Mutat. Res. 67, 367-371.

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data from reliable and reviewed publication
GLP compliance:
not specified
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Pyruvic acid
EC Number:
204-824-3
EC Name:
Pyruvic acid
Cas Number:
127-17-3
Molecular formula:
C3H4O3
IUPAC Name:
2-oxopropanoic acid
Test material form:
liquid

Method

Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 98
Additional strain / cell type characteristics:
not specified
Species / strain / cell type:
S. typhimurium TA 100
Additional strain / cell type characteristics:
not specified
Metabolic activation:
not specified
Test concentrations with justification for top dose:
10–10 000 μg/plate

Results and discussion

Test resultsopen allclose all
Key result
Species / strain:
S. typhimurium TA 100
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
Key result
Species / strain:
S. typhimurium TA 98
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

Applicant's summary and conclusion