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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

Read-across from an activated Sludge, Respiration Inhibition study  with monosodium salt of cyanuric acid. 

Key value for chemical safety assessment

EC50 for microorganisms:
5 773 mg/L

Additional information


1. Based on the experimental results obtained with the analogue monosodium salt of cyanuric acid (3h-NOEC = 2700 mg/L and 3h-EC50 > 4500 mg/L) and the molecular weights, the read-across approach is applied and the 3h-NOEC and 3h-EC50 for substance trisodium cyanurate are calculated to be 3464 mg/L and higher than 5773 mg/L, respectively.