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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 Diazobarbituric acid to alga (Desmodesmus subspicatus) was tested according to OECD guideline 201 ' Alga, Growth Inhibition Test'. During 72 hours exposure an ErC50 of >100 mg/L and ErC10 of >100 mg/L was measured and a NOEC of 50 mg/L was calculated. 

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L
EC10 or NOEC for freshwater algae:
100 mg/L

Additional information