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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1962

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Four rabbits were exposed to the test item for 24 hours by an occlusive clip. The observation period was 14 days.
GLP compliance:
no
Remarks:
study performed prior to implementation of GLP
Test type:
other: Please refer to principles of method if other than guideline

Test material

Constituent 1
Chemical structure
Reference substance name:
N-methyl-N-vinylacetamide
EC Number:
221-698-5
EC Name:
N-methyl-N-vinylacetamide
Cas Number:
3195-78-6
Molecular formula:
C5H9NO
IUPAC Name:
N-ethenyl-N-methylacetamide

Test animals

Species:
rabbit
Strain:
other: New Zealand
Sex:
male
Details on test animals or test system and environmental conditions:
Weight: 2.5 to 3.5 kg

Administration / exposure

Type of coverage:
occlusive
Vehicle:
not specified
Details on dermal exposure:
- Fur is removed by clipping
- Dose is retained beneath an impervious plastic film
- The animals are immobilized during the 24-hour contact period
Duration of exposure:
24 hour followed by a 14-day observation period
Doses:
no data
No. of animals per sex per dose:
four

Results and discussion

Effect levels
Key result
Sex:
male
Dose descriptor:
LD50
Effect level:
1.41 mL/kg bw
Based on:
test mat.
Remarks on result:
other: corresponding to 1354 mg/kg bw

Applicant's summary and conclusion

Interpretation of results:
Category 4 based on GHS criteria