Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Exposure related observations in humans: other data

Administrative data

Endpoint:
exposure-related observations in humans: other data
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991

Materials and methods

Type of study / information:
Observations after inhalative exposure of volunteers for 5 minutes.

Test material

Constituent 1
Chemical structure
Reference substance name:
5-methylheptan-3-one
EC Number:
208-793-7
EC Name:
5-methylheptan-3-one
Cas Number:
541-85-5
Molecular formula:
C8H16O
IUPAC Name:
5-methylheptan-3-one

Method

Ethical approval:
not specified
Exposure assessment:
measured
Details on exposure:
Exposure of volunteers to 5, 25, 50 and 100 ppm (27, 133, 266, 533 mg/m3) for 5 minutes

Results and discussion

Results:
- No symptoms were observed at a concentration of 27 mg/m3
- Volunteers complained of a mild nasal irritation at 133 mg/mg3
- Eye, nose and throat irritations occured at 266 mg/m3
- At concentration of 533 mg/m3, strong local irritation, headache and nausea were observed

Applicant's summary and conclusion

Conclusions:
Based on the observations, an indicative occupational exposure limit (IOEL) value of 53 mg/m3 was recommended.
Executive summary:

Volunteers were exposed to different levels of 5 -methylheptan-3 -one for 5 minutes. Based on the observations, an indicative occupational exposure limit (IOEL) value of 53 mg/m3 was recommended.