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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Because hexahydrophthalic anhydride (HHPA) hydrolyses almost instantaneously on contact with water, to give hexahydrophthalic acid (HHPAc, CAS 1687-30-5), the PBT assessment was made on that substance.

As result, hexahydrophthalic acid does not meet the criteria to be regarded as either PBT or vPvB.

Likely routes of exposure:

It is predicted the soil to be the most likely target compartment