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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
in vivo mammalian germ cell study: cytogenicity / chromosome aberration
Remarks:
Type of genotoxicity: chromosome aberration
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Original reference not translated. However, according to OECD SIDS a reliability of 2 was given.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
The influence of 1,4-dichlorbutene and 3,4-dichlorbutene on the crhomosoms of albino rats
Author:
Nalbandyan, T.I. and Gizhlaryan, M.S. : Zh. Eksp. Klin. Med.|25, 335-339 (1985)
Year:
1985
Bibliographic source:
Zh. Eksp. Klin. Med. 25, p 335-339
Reference Type:
secondary source
Title:
SIDS Initial Assessment Report for 11th SIAM
Author:
OECD SIDS
Year:
2003
Bibliographic source:
UNEP Publications

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The possible mutagene activity of 3,4-dichlorbutene was investigated at different exposures time at low dose levels.
GLP compliance:
not specified
Type of assay:
chromosome aberration assay

Test material

Constituent 1
Chemical structure
Reference substance name:
3,4-dichlorobut-1-ene
EC Number:
212-079-0
EC Name:
3,4-dichlorobut-1-ene
Cas Number:
760-23-6
Molecular formula:
C4H6Cl2
IUPAC Name:
3,4-dichlorobut-1-ene
Details on test material:
- Name of test material (as cited in study report): 3,4-Dichlorobut-1-ene
- Analytical purity: 99.2%

Test animals

Species:
rat
Strain:
other: Albino
Sex:
not specified
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Age at study initiation: No data available
- Weight at study initiation: 140 – 180 g

Administration / exposure

Route of administration:
inhalation
Details on exposure:
no data
Duration of treatment / exposure:
1, 30, and 120 days
Frequency of treatment:
Once during the 24 hours exposure; 4hrs/day, 5days/week during 30 and 120 days.
Post exposure period:
not reported
Doses / concentrations
Remarks:
Doses / Concentrations:
13.7 or 81.3 mg/m³
Basis:

No. of animals per sex per dose:
36 animals/group (no information about the sex of the animals)
Control animals:
yes
Positive control(s):
no data

Examinations

Tissues and cell types examined:
bone marrow
Evaluation criteria:
50 well-spread and complete metaphase cells per animal were analysed. Aberrations were classified as general method.
Statistics:
No data

Results and discussion

Test results
Sex:
not specified
Genotoxicity:
positive
Toxicity:
not specified
Vehicle controls validity:
not specified
Negative controls validity:
not specified
Positive controls validity:
not specified
Additional information on results:
The concentration of 13.7 and 81.3 mg/m³ caused chromosome damages, mainly of the chromatid type.
The number of aberrations increased in the increasing of concentration and exposure period.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): positive
Executive summary:

Nalbandyan (1985)

The possible mutagen activity of 3,4-dichlorbutene was investigated at different exposures time (1, 30 and 120 day per 5 days/week) at low dose levels (13.7 and 81.3 mg/m³). 3,4-DCB induced chromosomal aberrations in rat bone marrow cells after inhalation exposure for 30 and 120 days (4 hours/day, 5 days/week). The concentration of 13.7 and 81.3 mg/m³ caused chromosome damages, mainly of the chromatid type.