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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

A 96-hour LC50 value of 0.46 mg/l (mean measured concentration) has been determined for effects of HMDS on mortality of O. mykiss.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
0.46 mg/L

Additional information

A 96-hr LC50 value of 3.02 mg/L and NOEC of 0.28 mg/L have been determined for the effects of HMDS on mortality of Oncorhynchus mykiss based on nominal concentrations. A 96-hr LC50 value of 0.46 mg/L and NOEC of 0.11 mg/L have been re-calculated based on mean measured concentrations. The results of this test have been selected as the lowest definitive values from three reliable tests.