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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 acute toxicity of Desmodur MT to Alga (Desmodesmus subspicatus former name: Scenedesmus subspicatus) was tested to EEC Methods for Determination of Ecotoxicity Annex to Directive 92/69/EEC (0.J. No. L383A, 29.12.92) Part C, Method 3 'Algal inhibitiontest'.

During 72 hours exposure an ErC50 of >100 mg/L and an EbC50 of >100 mg/L was measured (Bayer Industry Services, 2006).

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L

Additional information

Should read >100 mg/L.