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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Oxidising properties

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Administrative data

Link to relevant study record(s)

Description of key information

Waiving: No study required as the substance does not possess chemical groups associated with oxidising properties in a molecule.

Key value for chemical safety assessment

Oxidising properties:

Additional information

In accordance with column 2 of REACH Annex VII, the oxidising properties study (required in section 7.13) does not need to be conducted, if the substance is incapable of reacting exothermically with combustible materials, for example on the basis of the chemical structure. In case of 3-mercaptopropionic acid there are no chemical groups associated with oxidising properties present in a molecule (carboxyl group does not have oxidising properties and additionally thiol group has reducing properties).

Justification for classification or non-classification

The study was waived because the substance does not possess chemical groups associated with oxidising properties. The statement is conclusive and does not lead to classification under CLP or 67/548/EEC.