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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 218-143-4 | CAS number: 2052-15-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (24 h) = 151 ± 13 mg/l
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 151 mg/L
Additional information
The short term toxicity potential of the substance to aquatic invertebrates was evaluated according to the OECD Guideline 202. Twenty daphnids (four groups of five)were exposed to different concentrations of the substance, ranging from 0 to 360 mg/l for 24 hours at 20 -22 °C. The test was repeated in triplicate. After 24 h in darkness, the immobilization of the daphnids was measured. The daphnids that were unable to swim for 15 s after gentle stirring were considered immobile.
EC50 (24 h) = 151 ± 13 mg/l
An EC50 at 48 h is experimentally determined; predicted data from ECOSAR v.1.10 show an EC50(48h) of 108.684 mg/l. No hazard is therefore identified for daphnids after 48 hours of exposure.
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.
