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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 500-150-1 | CAS number: 61791-00-2 1 - 2.5 moles ethoxylated
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
EL50(48h) = 12.41 mg/L (nominal, loading rate) for immobilisation of Daphnia magna (OECD 202)
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 12.41 mg/L
Additional information
One study investigating the short-term toxicity of the test substance to aquatic invertebrates is availbale. The study was performed according to GLP and OECD guideline 202 using Daphnia magna as test organism (Bak 2018). Loading rate WAFs ranging from 2.5 to 40 mg/L were tested. TOC analysis indicated the suitability of using nominal concentrations.The 48h-EL50 value is determined to be 12.41 mg/L based on nominal concentrations.
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.
