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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Testing for sensitisating potential of the substance was waived based on strong alkalinity (pH 13.61 at 10% in water.). In addition, the substance is classified as being corrosive.

Justification for classification or non-classification

Since no data are available on the sensitising potential of TMAH, the substance is not classified for skin sensitisation, as it is already classified as being corrosive according to CLP Regulation (EC) No. 1272/2008.