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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 424-820-7 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The test was conducted on Daphnia Magna in accordance with OECD Guideline 202; 48 hour EL50 = 0.09 mg/L (95% confidence interval of 0.07 to 0.14 mg/L).
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 0.09 mg/L
Additional information
The test was conducted on Daphnia magna in accordance with OECD Guideline 202 and EU Method C2, the study was conducted to GLP standards. The 50% Effect Loading (EL50) is the loading level of the test substance which would cause 50% immobilization in a population of test organisms over a specified exposure period. The 48 hour EL50 was 0.09 mg/L with a 95% confidence interval of 0.07 to 0.14 mg/L and was based on exposure to the loading levels of the test substance.
The final result is questionable as it is in contraddiction with the result from the long-term study performed on the same microorganism. The reliability of the long term study is considered higher as it is more recent and the report contains more details. However, for precautionary principle, the PNEC of the substance was calculated from the value obtained from this short term study which is the lowest in the environment sector.
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.
