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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
repeated dose toxicity: oral
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant, near guideline study, available as unpublished report, fully adequate for assessment

Data source

Materials and methods

Test material

Constituent 1
Reference substance name:
isobutylene
IUPAC Name:
isobutylene
Constituent 2
Chemical structure
Reference substance name:
2-methylpropene
EC Number:
204-066-3
EC Name:
2-methylpropene
Cas Number:
115-11-7
Molecular formula:
C4H8
IUPAC Name:
2-methylprop-1-ene

Results and discussion

Target system / organ toxicity

Critical effects observed:
not specified

Applicant's summary and conclusion