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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB
Justification:

The PBT Assessment forN-ethylcaprolactam is based on the criteria set out in the “Guidance on information requirements and chemical safety assessment, Chapter R.11: PBT Assessment” (ECHA, 2017).

Persistence

N-ethylcaprolactam is not readily biodegradable according to OECD criteria (2-18 % after 28 days, OECD 301B). Abiotic degradation by hydrolysis is not expected. Thus the substance has to be considered as potentially P/vP. 

Bioaccumulation

Bioaccumulation of N-ethylcaprolactam is not likely based on the experimentally determined log Pow of 0.6. The substance does not fulfil the screening criteria for B or vB.

Toxicity

All available acute and chronic effect values for N-ethylcaprolactam are > 0.01 mg/L. The substance is not classified as carcinogenic (cat. 1A or 1B), germ cell mutagenic (cat. 1 or 1B) or toxic to reproduction (class 1A, 1B or 2) or STOT RE 1, STOT RE 2. Thus, N-ethylcaprolactam does not fulfil the T criterion. 

In conclusion the substance is not PBT/vPvB.