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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In a growth inhibition test on alga (Selenastrum capricornutum) a 72 -hour EC50 of 0.5 mg/l and a 72 -hour NOEC of 0.066 mg/l were determined for 2-mercaptobenzothiazole. (MITI, 1999)

Key value for chemical safety assessment

Additional information

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