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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 test substance is not T:

In short-term studies and in a long-term study (partly available through read-across to Linseed oil, polymerized), no effects were observed on aquatic organisms at levels of 100 mg/L, and the test substance is not classified for any human health hazard.

The test substance is 'predominantly not B':

Although log Kow is very high, the major fraction (75%) of this UVCB substance has a high molecular weight (>1100 g/mol) indicating it is not B and not vB. The fraction with a molecular weight >700 g/mol is 98%. This part of the substance can therefore be considered not vB. 2% of the substance may be vB.

The test substance is not P:

Based on read-across to Linseed oil, polymerized, the half-life time of the test substance in the enhanced closed bottle test, which has conditions comparable to fresh surface water, is below 60 days.

Biotransformation products are P or vP:

Based on read-across to Linseed oil, polymerized , persistent biotransformation products are expected to be formed that are water soluble, so they have a low log Kow. The 48h-EC50 for Daphnia magna of the combined biotransformation products was > 1 mg/l. This is far above the screening level for T.

As the biotransformation products are water soluble and not T, they are not PBT or vPvB.


As the test substance is not T and not P, it is not a PBT or vPvB substance.

The biotransformation products are P or vP, but not T or B, so they are not PBT or vPvB.