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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
publication
Title:
Evaluation of feasibility of mutagenic testing of shale oil products and effluents
Author:
Epler JL, Rao TK, Guerin MR
Year:
1979
Bibliographic source:
Environmental Health Perspectives 30: 179-184

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
- Principle of test: bacterial reverse mutation assay with S. typhimurium TA98 and TA100
- Short description of test conditions: with and without metabolisation, revertants counted after 2-day incubation
GLP compliance:
no
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
3,4-xylenol
EC Number:
202-439-5
EC Name:
3,4-xylenol
Cas Number:
95-65-8
Molecular formula:
C8H10O
IUPAC Name:
3,4-dimethylphenol

Method

Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 98
Species / strain / cell type:
S. typhimurium TA 100
Metabolic activation:
with and without
Controls
Positive controls:
yes

Results and discussion

Test resultsopen allclose all
Species / strain:
S. typhimurium TA 98
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Species / strain:
S. typhimurium TA 100
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified

Applicant's summary and conclusion

Conclusions:
3,4-xylenol tested negative in a bacterial reverse mutation assay with S. typhimurium TA98 and TA100.