Registration Dossier
Registration Dossier
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: 807-489-7 | CAS number: 1447712-18-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
- Growth rate inhibition
EC50 (72h) 29.3 mg/L (nominal)
EC10 (72h) 16.5 mg/L (nominal)
NOEC (72h) 6.40 mg/L (nominal)
LOEC (72h) 16.0 mg/L (nominal)
- Biomass inhibition
EC50 (72h) 17.0 mg/L (nominal)
EC10 (72h) 11.8 mg/L (nominal)
NOEC (72h) 6.40 mg/L (nominal)
LOEC (72h) 16.0 mg/L (nominal)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 29.3 mg/L
- EC10 or NOEC for freshwater algae:
- 16.5 mg/L
Additional information
The toxicity test to aquatic algae (key_Toxicity to aquatic algae and cyanobacteria_2014_RL1) performed according to OECD 201 (2011) and GLP was rated with RL=1 (reliable without restrictions) and used as key study. The influence of the test item on the growth of the freshwater green algae Pseudokirchneriella subcapitata was assessed in a static dose response test.
The results indicate that the test item inhibits the growth of the freshwater green alga Pseudokirchneriella subcapitata after 72 hours with the following effect values (based on nominal concentrations):
The EC50-values for inhibition of growth rate (ErC50) and yield (EyC50) after 72 hours were 29.3 mg/L and 17.0 mg/L, respectively.
The EC10-values for inhibition of growth rate (ErC10) and yield (EyC10) after 72 hours were 16.5 mg/L and 11.8 mg/L, respectively.
The NOEC-values for inhibition of growth rate and yield after 72 hours were for both 6.40 mg/L, respectively.
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.
