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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)

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 401 (Acute Oral Toxicity)
GLP compliance:
not specified
Test type:
standard acute method

Test material

Constituent 1
Chemical structure
Reference substance name:
m-tolyl isocyanate
EC Number:
210-676-0
EC Name:
m-tolyl isocyanate
Cas Number:
621-29-4
Molecular formula:
C8H7NO
IUPAC Name:
1-isocyanato-3-methylbenzene

Test animals

Species:
rat
Strain:
Wistar
Sex:
male
Details on test animals or test system and environmental conditions:
weight 110 - 150 g

Administration / exposure

Route of administration:
oral: unspecified
Vehicle:
unchanged (no vehicle)
Doses:
1.259 ml/kg
1.585 ml/kg
1.995 ml/kg
2.512 ml/kg
3.163 ml/kg
3.981 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:
>= 1.757 - <= 2.528 mL/kg bw
Based on:
test mat.
Sex:
male
Dose descriptor:
approximate LD50
Effect level:
2.107 mL/kg bw
Based on:
test mat.
Sex:
male
Dose descriptor:
LD50
Effect level:
>= 1 868 - <= 2 687 mg/kg bw
Based on:
test mat.
Sex:
male
Dose descriptor:
approximate LD50
Effect level:
2 240 mg/kg bw
Based on:
test mat.
Mortality:
1.259 ml/kg 1:10 (1 dead from 10 animals)
1.585 ml/kg 4:10
1.995 ml/kg 4:10
2.512 ml/kg 6:10
3.163 ml/kg 7:10
3.981 ml/kg 10:10

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU