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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

An inhibition of the degredation activity of activated sludge is not anticipated when epsilon-Caprolactam is introduced in appropriate low concentrations.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1 737 mg/L

Additional information

As key study for the toxicity to microorganisms, a non-GLP test according to German Industrial Standard DIN 38412 part B using Pseudomonas putida as test organism is available (BASF 1998). This test resulted in an EC10 (17h) of 1737 mg/l.