Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1995
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
These data and information are based on the International Programme on Chemical Safety (IPCS) published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organisation, and the World Health Organization (Environmental Health Criteria 167) and different published sources from the IUCLID dataset.

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
1978

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
No method or guideline mentioned.
GLP compliance:
not specified
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Acetaldehyde
EC Number:
200-836-8
EC Name:
Acetaldehyde
Cas Number:
75-07-0
Molecular formula:
C2H4O
IUPAC Name:
acetaldehyde
Details on test material:
No details available.

Method

Target gene:
Not applicable.
Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and E. coli WP2
Species / strain / cell type:
S. typhimurium, other: TA104
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
Species / strain / cell type:
S. typhimurium TA 97
Species / strain / cell type:
E. coli WP2 uvr A
Additional strain / cell type characteristics:
not specified
Metabolic activation:
with and without
Metabolic activation system:
Not indicated.
Test concentrations with justification for top dose:
40 µg/mL (Veghelyi et al. 1978)
0.88-441 µg/mL (Hemminki et al. 1980)
0.8 µg/mL (Igali & Gazso 1980)
1014 µg/plate (Marnett et al. 1985)
33-10'000 µg/plate (Mortelmans et al. 1986)
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 102
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 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 97
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 98
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 1537
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:
E. coli WP2 uvr A
Metabolic activation:
without
Genotoxicity:
positive
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 1535
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'.

Any other information on results incl. tables

Statistically significant mutagenic responses were induced in E.coli WP2uvrA in preincubation assays without metabolic activation at 37°C (Veghelyi et al., 1978) and 0°C (Igali & Gazso, 1980). In contrast, in another study on the same strain, results were negative (Hemminki et al., 1980).

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information):
negative

Acetaldehyde was not mutagenic when tested adequately in standard preincubation assays with S. typhimurium. Statistically significant mutagenic responses were induced in E.coli WP2uvrA in preincubation assays without metabolic activation at 37°C (Veghelyi et al., 1978) and 0°C (Igali & Gazso, 1980). In contrast, in another study on the same strain, results were negative (Hemminki et al., 1980). Therefore, the substance will be not classified as mutagenic in the bacterial reverse mutation assay (Ames).
Executive summary:

These data and information are based on the International Programme on Chemical Safety (IPCS) published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organisation, and the World Health Organization (Environmental Health Criteria 167) and different published sources from the IUCLID dataset. Acetaldehyde was not mutagenic when tested adequately in standard preincubation assays with S. typhimurium. Statistically significant mutagenic responses were induced in E.coli WP2uvrA in preincubation assays without metabolic activation at 37°C (Veghelyi et al., 1978) and 0°C (Igali & Gazso, 1980). In contrast, in another study on the same strain, results were negative (Hemminki et al., 1980). Therefore, the substance will be not classified as mutagenic in the bacterial reverse mutation assay (Ames).