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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

With high probability, epsilon-Caprolactam is acutely not harmful to aquatic organisms.

Key value for chemical safety assessment

EC50 for freshwater algae:
1 000 mg/L
EC10 or NOEC for freshwater algae:
1 000 mg/L

Additional information

The key study was performed as GLP guideline test according to OECD 201. By use of a static procedure and Pseudokirchneriella subcapitata as test species a NOEC (72h) of 1000 mg/l and an EC50 (72h) >1000 mg/l were derived. The study was performed at the Mitsubishi Chemical Safety Institute Ltd. on behalf of the Ministry of Environment, Gouvernment of Japan.