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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The growth inhibition of algae was determined using a validated QSAR for the Mode of Action in question (MOA 1, non-polar narcosis).

The toxicity to algae of dimethyloctadiene has been investigated using a QSAR model that predicts growth rate inhibition of algae in an OECD 201 study. dimethyloctadiene falls within the applicability domain of the model as demonstrated in the QPRF.

72h-ErC50 for dimethyloctadiene = 0.12 mg test item/L based on growth rate inhibition with 95%-Confidence Limit of 0.06 - 0.25 mg test item/L. 

Key value for chemical safety assessment

EC50 for freshwater algae:
0.12 mg/L

Additional information