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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: other routes
Type of information:
experimental study
Adequacy of study:
other information
Study period:
1967-07-04 - 1967-07-11
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: basic information given

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1967
Report date:
1967

Materials and methods

Principles of method if other than guideline:
according to BASF-internal standard
GLP compliance:
no
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-ethylimidazole
EC Number:
214-011-5
EC Name:
2-ethylimidazole
Cas Number:
1072-62-4
Molecular formula:
C5H8N2
IUPAC Name:
2-ethylimidazole

Test animals

Species:
mouse
Strain:
other: "Kisslegg" mice
Sex:
male/female

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
water
Details on exposure:
Form of application: solution
Concentrations used: 2, 4, 8 and 16% (w/v)
Doses:
200, 250, 320, 400, 500, 800 and 1600 mg/kg
No. of animals per sex per dose:
10 per dose level
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
ca. 400 mg/kg bw
Mortality:
200, 250 and 320 mg/kg: no deaths; 400 mg/kg: 5/10 after 7 days; 500 mg/kg: 8/10 after 7 days; 800 and 1600 mg/kg: 10/10 after 7 days
Clinical signs:
Dyspnea, apathy, staggering, abdominal and lateral position, convulsions
Gross pathology:
Animals that died: 1 x adherences between liver and stomach
Sacrificed animals: mot animals with adherences or adhesions, 3 x spotty-paled liver

Applicant's summary and conclusion