Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

On Daphnia magna a 48-hour LC50 of 2.84 mg/l and a 48-hour NOEC of 0.71 mg/l were (Monsanto 1978) observed.

Key value for chemical safety assessment

Additional information

A hydrolysis half-life time of MBS of ca. 24 h was observed in deionised and environmental water buffered at pH 7.0. Benzothiazole-2-thiole (MBT) and benzothoazole (BT) as hydrolysis products are considered here to support the assessment of MBS. The observed effects are most probably a combined effect of the parent substance and the hydrolysis products.