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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: inhalation
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1959
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1959
Report date:
1959

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no
Test type:
acute toxic class method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-methylfuran
EC Number:
208-594-5
EC Name:
2-methylfuran
Cas Number:
534-22-5
Molecular formula:
C5H6O
IUPAC Name:
2-methylfuran
Specific details on test material used for the study:
not specified

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
not specified

Administration / exposure

Route of administration:
inhalation
Type of inhalation exposure:
not specified
Vehicle:
not specified
Remark on MMAD/GSD:
not specified
Details on inhalation exposure:
single inhalation exposure
Analytical verification of test atmosphere concentrations:
not specified
Remarks on duration:
4hours
Concentrations:
not specified
No. of animals per sex per dose:
not specified
Control animals:
not specified
Details on study design:
not specified
Statistics:
not specified

Results and discussion

Effect levelsopen allclose all
Key result
Sex:
not specified
Dose descriptor:
LC50
Effect level:
>= 5.8 mg/L air
Based on:
test mat.
Exp. duration:
4 h
Key result
Sex:
not specified
Dose descriptor:
LC50
Effect level:
>= 1 700 ppm
Based on:
test mat.
Exp. duration:
4 h
Mortality:
not specified
Clinical signs:
other: not specified
Body weight:
not specified
Gross pathology:
not specified
Other findings:
not specified

Applicant's summary and conclusion

Conclusions:
The LC50 of 2-methylfuran (4h) was determined to be 5.8 mg/L (1700 ppm) in an inhalation toxicity study of a single 4 hours exposure to rats.
Executive summary:

In an acute inhalation toxicity study rats were exposed to 2-methylfuran in a single application over 4 hours.

No further details on the study design were given and it was not specified if any guideline was followed.

The LC50 was determined to be 5.8 mg/L (1700 ppm) in this acute inhalation study. The test substance was rated as moderately toxic by the authors of the study.