Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1969

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 403 (Acute Inhalation Toxicity)
Principles of method if other than guideline:
No description of the guideline available
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2-methylcyclohexanone
EC Number:
209-513-6
EC Name:
2-methylcyclohexanone
Cas Number:
583-60-8
Molecular formula:
C7H12O
IUPAC Name:
2-methylcyclohexan-1-one
Test material form:
liquid
Details on test material:
As received, undiluted, the sample was observed to be a free-flowing
clear liquid.

Test animals

Species:
rat
Sex:
not specified

Administration / exposure

Route of administration:
inhalation: vapour
Type of inhalation exposure:
not specified

Results and discussion

Effect levels
Key result
Sex:
not specified
Dose descriptor:
LC50
Effect level:
2 800 ppm
Based on:
test mat.
Exp. duration:
4 h
Mortality:
50%

Applicant's summary and conclusion

Interpretation of results:
Category 4 based on GHS criteria
Conclusions:
2-methycyclohexanone has an acute inhalative LC50 of 2800 ppm. As a result, the substance meets the criteria for classification for Category 4 according to Regulation (EC) No 1272/2008, Annex I section 3.1.