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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Monomeric methyl methacrylate studies on toxicity
Author:
Spealman C.R., Main R.J., Haag H.B., Larson P.S.
Year:
1945
Bibliographic source:
Ind. Med. 14: 292-298

Materials and methods

Principles of method if other than guideline:
Study to assess the acute inhalative toxicity in mice.
GLP compliance:
no
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl methacrylate
EC Number:
201-297-1
EC Name:
Methyl methacrylate
Cas Number:
80-62-6
Molecular formula:
C5H8O2
IUPAC Name:
methyl methacrylate

Test animals

Species:
mouse
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
inhalation
Type of inhalation exposure:
not specified
Vehicle:
not specified
Duration of exposure:
3 h

Results and discussion

Effect levelsopen allclose all
Key result
Dose descriptor:
LC50
Effect level:
55 mg/L air
Exp. duration:
3 h
Remarks on result:
other: 55.0 mg/L equals 13220 ppm
Dose descriptor:
LC100
Effect level:
61.8 mg/L air
Exp. duration:
3 h
Remarks on result:
other: 61.8 mg/L equals 14860 ppm
Dose descriptor:
other: LC5
Effect level:
26.2 mg/L air
Exp. duration:
3 h
Remarks on result:
other: 26.2 mg/L equals 6300 ppm
Dose descriptor:
other: LC13
Effect level:
47.7 mg/L air
Exp. duration:
3 h
Remarks on result:
other: 47.7 mg/L equals 11470 ppm

Applicant's summary and conclusion