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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Remarks:
Type of genotoxicity: gene mutation
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Study of artificial flavouring substances for mutagenicity in the Salmonella/microsome, basic and micronucleus tests.
Author:
Wild, D.
Year:
1983
Bibliographic source:
Food and Chemical
Reference Type:
secondary source
Title:
No information
Author:
WHO
Year:
2001
Bibliographic source:
WHO Food Additive Series: 48

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
standard Ames assay
GLP compliance:
not specified
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
2'-acetonaphthone
EC Number:
202-216-2
EC Name:
2'-acetonaphthone
Cas Number:
93-08-3
Molecular formula:
C12H10O
IUPAC Name:
1-(2-naphthyl)ethanone
Test material form:
solid: crystalline
Details on test material:
- Name of test material: 2'-acetonaphthone
- Substance type: Organic
- Physical state: Solid

Method

Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Additional strain / cell type characteristics:
not specified
Species / strain / cell type:
S. typhimurium TA 1538
Additional strain / cell type characteristics:
not specified
Metabolic activation:
with and without
Metabolic activation system:
no data
Test concentrations with justification for top dose:
3600 µg/plate
Controls
Untreated negative controls:
not specified
Negative solvent / vehicle controls:
not specified
True negative controls:
not specified
Positive controls:
not specified
Positive control substance:
not specified

Results and discussion

Test resultsopen allclose all
Species / strain:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Metabolic activation:
with and without
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
Species / strain:
S. typhimurium TA 1538
Metabolic activation:
with and without
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

No reverse mutation was reported in the standard Ames assay with various strains of Salmonella typhimurium (TA98, TA100, TA1535, TA1537, TA1538) incubated with 3600 µg/plate of 2'- acetonaphthone with and without metabolic activation.
Executive summary:

No reverse mutation was reported in the standard Ames assay with various strains of Salmonella typhimurium (TA98, TA100, TA1535, TA1537, TA1538) incubated with 3600 µg/plate of 2'- acetonaphthone with and without metabolic activation.