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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: scientifically acceptable study report, but no mortalities occured at the only concentration tested

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Deviations:
yes
Remarks:
8 days observation period
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1-methylpyrrolidine
EC Number:
204-438-5
EC Name:
1-methylpyrrolidine
Cas Number:
120-94-5
Molecular formula:
C5H11N
IUPAC Name:
1-methylpyrrolidine

Test animals

Species:
rabbit
Strain:
Vienna White
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: M.GAUKLER, Offenbach, Germany
- Weight at study initiation: male animals 2.8 kg, female animals 3.0 kg
- Diet: ad libitum Ssniff K standard diet for rabbits and guinea pigs supplied by Intermast GmbH, Soest, Germany
- Water: ad libitum

Administration / exposure

Type of coverage:
occlusive
Vehicle:
unchanged (no vehicle)
Details on dermal exposure:
TEST SITE
- Area of exposure: back and flanks, about 50 cm2

REMOVAL OF TEST SUBSTANCE
- Washing: after removal of coverage, washing with warm water or water/Lutrol
- Time after start of exposure: 24 h

TEST MATERIAL
- Amount applied: 200 mg/kg bw

Duration of exposure:
24 h
Doses:
200 mg/kg bw
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 8 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, histopathology

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 200 mg/kg bw
Based on:
test mat.
Mortality:
none
Clinical signs:
other: Signs of systemic toxicity: none Signs of local irritation: 24 hours after application parchment-like necrosis (after 8 days leather-like necrosis) and edema formation.
Gross pathology:
Nothing abnormal detected.

Applicant's summary and conclusion