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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline study. Adopted according to OECD SIDS (public available peer reviewed source). The original source is not available and has not been reviewed.

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
SIDS Initial Assessment Report for 11th SIAM
Author:
OECD SIDS
Year:
2003
Bibliographic source:
UNEP Publications
Reference Type:
study report
Title:
Unnamed
Year:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
yes
Test type:
standard acute method

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: Sample 1: 99.67 wt %; Sample 2: 98.26 wt %.

Test animals

Species:
rabbit
Sex:
male/female
Details on test animals or test system and environmental conditions:
no further data

Administration / exposure

Type of coverage:
not specified
Vehicle:
not specified
Details on dermal exposure:
no further data
Duration of exposure:
24 hours
Doses:
Intact skin of groups of 5 male and 5 female rabbits each at dosages of 700 or 2000 mg/kg. Additionally, 1 female rabbit was treated at 1000 mg/kg.
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days (except the additional group dosed at 2000 mg/kg. The additional group dose at 2000 mg/kg was sacrificed 2 days after application of the test substance and animals were not necropsied)
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs
Statistics:
No data

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
No deaths occurred during the study.
Clinical signs:
other: After treatment for 24 hours slight to severe erythema and no to mild edema were observed. Dermal erythema persisted in most rabbits throughout the observation period. Most rabbits exhibited epidermal scaling and sloughing from day 5 to 6 throughout the r
Gross pathology:
No further data
Other findings:
Most rabbits from all dose groups were hypo-responsive to auditory (finger snap and hand clap) and tactile (face touching) stimuli up to approx. 4 hours after dosing.

Applicant's summary and conclusion