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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 940-592-6 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to Pseudokirchneriella subcapitata in an Algal Growth Inhibition Test
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 2.72 mg/L
- EC10 or NOEC for freshwater algae:
- 1.46 mg/L
Additional information
The influence of the test material on the growth of the freshwater green algaePseudokirchneriella subcapitatawas assessed in a static dose-response test. The 72-hour EyC50was calculated to be1.68 mg test item/L, and the 72-hour ErC50value was calculated to be>2.72 mg test item/L. The 72-hour EyC50was calculated to be1.68 mg test item/L, and the 72-hour ErC10value was calculated to be 1.46 mg test item/L
The 72-hour NOEyC was determined to be0.368 mg test item/L and the associated 72-hour LOEyC was0.636 mg test item/L. The 72-hour NOErC was determined to be0.368 mg test item/L and the associated 72-hour LOErC was0.638 mg test item/L. This study showed that the ErC50value is above the highest achievable mean concentration in the test medium.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.
