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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05 - 10/1977
Reliability:
3 (not reliable)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1976
Report date:
1977

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
not specified
Test type:
standard acute method

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl chloroformate
EC Number:
201-187-3
EC Name:
Methyl chloroformate
Cas Number:
79-22-1
Molecular formula:
C2H3ClO2
IUPAC Name:
methyl chloroformate

Test animals

Species:
rat
Strain:
Wistar
Sex:
male

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
olive oil
Remarks:
2% solution
Doses:
0.2512 ml/kg
0.3163 ml/kg
0.3981 ml/kg
No. of animals per sex per dose:
10
Control animals:
not specified

Results and discussion

Effect levelsopen allclose all
Sex:
male
Dose descriptor:
LD50
Effect level:
>= 346.6 - <= 393.1 mg/kg bw
Based on:
test mat.
Sex:
male
Dose descriptor:
other: mean LD50
Effect level:
369.1 mg/kg bw
Based on:
test mat.
Mortality:
0.2512 ml/kg mortality 0 of 10 animals
0.3163 ml/kg mortality 7 of 10 animals
0.3981 ml/kg mortality 10 of 10 animals

Applicant's summary and conclusion

Interpretation of results:
harmful
Remarks:
Migrated information Criteria used for interpretation of results: EU