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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Fathead minnows (Pimephales promelas) were exposed for 96hours under flow-through conditions to 5 mean measured concentrations of Hexylcinnamaldehyde in a solvent ranging from 0.12 to 2.3 mg/L. No effects were observed up to the aqueous solubility limit of the substance.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1.7 mg/L

Additional information

Fathead minnows (Pimephales promelas) were exposed for 96hours under flow-through conditions to 5 mean measured concentrations of Hexylcinnamaldehyde in a solvent ranging from 0.12 to 2.3 mg/L.

The 96hour LC50 value was 1.7 mg/L, with 95% confidence limits of 0.93 and 2.3 mg/L.

The no-mortality concentration and the NOEC were both 0.93 mg/L.

No effects were observed up to the aqueous solubility limit of the substance. Any mortality or effects observed were therefore due to physical effects due to the solvent artificially maintaining the test substance in an emulsion that was stable under the conditions ofthe study (flow-through conditions) but not possible to maintain under environmental conditions.