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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Key value for chemical safety assessment

Skin sensitisation

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not sensitising)
Additional information:

Skin sensitisation was tested on mice by the LLNA method according to the respective OECD test guideline under GLP. The results showed no sensitisation under the test conditions. Therefore, 1-Pentene is not classified as a skin sensitiser.


Migrated from Short description of key information:
The test item 1-Pentene was tested according to the LLNA method. 1-Pentene is not a skin sensitiser under these test conditions.

Respiratory sensitisation

Endpoint conclusion
Additional information:
Migrated from Short description of key information:
The respiratory sensitisation effects of 1-Pentene were not tested.

Justification for classification or non-classification

According to the results of LLNA test, 1-Pentene is not a skin sensitiser. No data on respiratory sensitisation are available.