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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 464-300-7 | CAS number: 141645-16-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 72-hour ErC50 and the 72-hour EbC50 of SR28043 in a static test system were > 0.305 mg/L (geometric mean of measured concentrations
during the test in a saturated solution obtained from a loading rate of 100 mg/L), for Scenedesmus subspicatus.
The NOEC at 72 hours was ≥ 0.305 mg/L based on both the specific growth data and biomass data.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.305 mg/L
- EC10 or NOEC for freshwater algae:
- 0.305 mg/L
Additional information
The 72-hour ErC50 and the 72-hour EbC50 were > 0.305 mg/L and the No Observed Effect Concentration (NOEC) after 72 hours was ≥ 0.305 mg/L (p = 0.05) based on both the specific growth rate data and biomass data.
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.
