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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 500-236-9 | CAS number: 68920-66-1 1 - 2.5 moles ethoxylated
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
The toxicity of the substances of the Alcohol Ethoxylates (AE) category to algae was assessed in a weight of evidence (WoE) approach based on the grouping of substances (category approach). The WoE approach combines experimental data, available for selected substances within the 'linear' subgroup of the AE category, and data derived by AE substance specific QSAR calculations. A study according to OECD guideline 201 on the long chain substance (Z)-9-Octadecen-1-ol ethoxylated (CAS No. 9004-98-2) is still ongoing. The results of the study will be included in the present QSAR calculation once the final study report is available. The outcome of this study is expected to have an impact in particular on the evaluation of the long-chain substances. Therefore, the current assessment of the chronic toxicity of the target substance Alcohols, C16-18 and C18 unsatd., ethoxylated is considered preliminary and will be updated as soon as the final study report is available.
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.
