Registration Dossier
Registration Dossier
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EC number: 205-793-9 | CAS number: 151-56-4
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: No GLP compliance and no data on the method.
Data source
Reference
- Reference Type:
- publication
- Title:
- The single dose toxicity of some glycols and derivatives
- Author:
- Smyth H, Seaton J, Fischer L
- Year:
- 1 941
- Bibliographic source:
- Journal of Industrial Hygiene and Toxicology. Vol. 23, Pg. 259.
Materials and methods
- Principles of method if other than guideline:
- Single administration of the test substance by oral gavage.
- GLP compliance:
- no
- Test type:
- acute toxic class method
- Limit test:
- yes
Test material
- Reference substance name:
- Aziridine
- EC Number:
- 205-793-9
- EC Name:
- Aziridine
- Cas Number:
- 151-56-4
- Molecular formula:
- C2H5N
- IUPAC Name:
- aziridine
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: Wistar albino
- Sex:
- male
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Weight at study initiation: 90-120 g
- Fasting period before study: the diet was given in the afternoon and the dose administered of test substance was administered the following morning.
- Diet (e.g. ad libitum): Purina chows and fresh vegetables
- Water (e.g. ad libitum): ad libitum
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Details on oral exposure:
- VEHICLE
- Concentration in vehicle: 0.2%
- Amount of vehicle (if gavage): no data - Doses:
- One dose of 0.2% ethyleneimine (quantity of vehicle not stated)
- Control animals:
- not specified
- Statistics:
- The data were calculated by the method of probits.
Results and discussion
Effect levels
- Sex:
- male
- Dose descriptor:
- LD50
- Effect level:
- 15 mg/kg bw
- Based on:
- test mat.
- Mortality:
- Most deaths occurred within the firsts 2 days.
- Gross pathology:
- Animals were autopsied but tissues were not studied microscopically because this step was beyond the scope of this preliminary investigation.
Kidneys: other changes
Liver: was less affected, but bile was often orange or reddish. - Other findings:
- Digestive tract irritation
Applicant's summary and conclusion
- Interpretation of results:
- Toxicity Category II
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- LD50 = 15 mg/kg bw
- Executive summary:
In this investigation the LD50 was determined for different substances, including ethyleneimine. The test substance was administered by oral gavage to male Wistar rats and the LD50 was found to be 15 mg/kg bw. The method was not stated.
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