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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

In a chronic toxicity test on Daphnia magna for 2-mercaptobenzothiazole a 21-d NOEC of 0.08 mg/l and a 21d-EC50 of 0.33 mg/l were determined based on reproduction. (MITI 1999)

Key value for chemical safety assessment

Additional information

There is no direct data available regarding the chronic effect of MBS on aquatic invertebrates. As hydrolysis product of MBS, a read-across approach from MBT is used to support the toxicity discussion regarding MBS.