Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 221-255-6 | CAS number: 3047-33-4
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Read-across from a Daphnia magna reproduction study performed with the Monosodium salt of cyanuric acid NOEC (21d)= 183.4 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 183.4 mg/L
Additional information
1. Based on the experimental results obtained with the analogue monosodium salt of cyanuric acid, monohydrate in Daphnia magna (21 d-EC50 = 2600 mg/L, basis for effect: immobilisation; 21 d-EC50 = 2800 mg/L, basis for effect: reproduction; 21 d-LOEC = 500 mg/L, basis for effect: mortality and reproduction; 21 d-NOEC = 160 mg/L, basis for effect: mortality and reproduction) and the molecular weights, the read-across approach is applied and the 21 d-EC50, 21 d-LOEC and 21 d-NOEC for substance trisodium cyanurate are calculated to be 21 d-EC50 = 2981.1 mg/L, basis for effect: immobilisation; 21 d-EC50 = 3210.4 mg/L, basis for effect: reproduction; 21 d-LOEC = 573.2 mg/L, basis for effect: mortality and reproduction; 21 d-NOEC = 183.4 mg/L, basis for effect: mortality and reproduction.
2. Based on the experimental results obtained with the analogue cyanuric acid in Dreissena polymorpha pallas ((LC50 1000 and 2000 mg/L > 1 month for raw cyanuric acid and LT50 1000 and 2000 mg/L ≤ 17 days for pure cyanuric acid) and the molecular weights, the read-across approach is applied and the same values for substance trisodium cyanurate can be extrapolated.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
