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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

LC50 96h zebrafish > 1000 mg/l

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1 000 mg/L

Additional information

Some summary reports are available, for which the original complete reports were not recovered. The summaries are old, but they contain enough details to well identify the studies. They are all consistent and indicate a LC50 on Zebrafish at 96h higher than 500 - 1000 mg/l.


A test (with a good reliability) on the toxicity to fish at 14 -days with Brachydanio rerio is available on the similar substance 3a-MSA. Justification for Read Across is given in Section 13 of IUCLID. The nominal concentrations of 100, 316, 1000 mg /l were tested and the NOEC was identified at the concentration of 859 mg/l (nominal) (Bayer, 1992).