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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

The substance, 1-(tert-butyldimethylsilyl)piperazine hydrolyses very rapidly in contact with water and therefore the substance does not meet the criteria for PBT or vPvB.

The silanol hydrolysis product may persist in the environment but do not meet the criteria for B or T and therefore the silanol hydrolysis product should not be concluded to be PBT or vPvB.

The non-silanol hydrolysis product, piperazine; is reported to be inherently biodegradable, thus piperazine should not be concluded to be PBT or vPvB.