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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
test procedure in accordance with national standard methods with acceptable restrictions

Data source

Reference
Reference Type:
publication
Title:
Final report on the safety assessment of Basic Violet 1, Basic Violet 3, and Basic Violet 4
Author:
C. Diamante et al.
Year:
2009
Bibliographic source:
International Journal of Toxicology, 28(Suppl 3) 193s-204s

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
GLP compliance:
not specified
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
4-[[4-(dimethylamino)phenyl][4-(methylimino)cyclohexa-2,5-dien-1-ylidene]methyl]-N,N-dimethylaniline monohydrochloride
EC Number:
210-042-3
EC Name:
4-[[4-(dimethylamino)phenyl][4-(methylimino)cyclohexa-2,5-dien-1-ylidene]methyl]-N,N-dimethylaniline monohydrochloride
Cas Number:
603-47-4
Molecular formula:
C24H27N3.ClH
IUPAC Name:
4-[[4-(dimethylamino)phenyl][4-(methylimino)cyclohexa-2,5-dien-1-ylidene]methyl]-N,N-dimethylaniline monohydrochloride

Method

Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Species / strain / cell type:
S. typhimurium TA 1538
Metabolic activation:
with and without
Metabolic activation system:
S9 mix (no additional information)
Test concentrations with justification for top dose:
0.32, 1, 3.2 and 10 ug/plate
Vehicle / solvent:
Not specified
Controls
Positive controls:
yes
Positive control substance:
2-acetylaminofluorene
other: bêta-propiolactone

Results and discussion

Test resultsopen allclose all
Key result
Species / strain:
S. typhimurium TA 1535
Metabolic activation:
without
Genotoxicity:
positive
Cytotoxicity / choice of top concentrations:
not specified
Positive controls validity:
not specified
Key result
Species / strain:
S. typhimurium TA 1535
Metabolic activation:
with
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Positive controls validity:
not specified
Key result
Species / strain:
S. typhimurium TA 1537
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Positive controls validity:
not specified
Key result
Species / strain:
S. typhimurium TA 1538
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Positive controls validity:
not specified
Key result
Species / strain:
S. typhimurium TA 98
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Positive controls validity:
not specified
Key result
Species / strain:
S. typhimurium TA 100
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Positive controls validity:
not specified

Applicant's summary and conclusion

Conclusions:
When tested on Salmonella typhimurium (strains TA98, TA100, TA1535, TA1537, TA1538), Basic Violet 1 was mutagenic only in TA1535 at low chemical concentrations in the absence of S9
(Bonin et al., 1981)