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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 500-464-9 | CAS number: 160901-27-9 1 - 2.5 moles ethoxylated
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
NOEC (21 d) = 5.3 mg a.i./L (measured) related to reproduction.
Key value for chemical safety assessment
Additional information
The assessment is based on the data currently available. New studies, based on the category review and the final decisions issued for some of the category substances, which are also relevant for this assessment, are currently being conducted. The hazard assessment with respect to aquatic toxicity will be updated once all ongoing studies have been finalised.
No chronic invertebrate studies on toxic effects of AES (C9 -11, 1 -2.5EO) NH4 (CAS 160901 -27 -9) are available. Therefore, this endpoint is covered by read across to a structurally related AES (C8 -10, 2.5EO) NH4 (CAS 68891 -29 -2).
Examining the toxic effects of AES (C8 -10, 2.5EO) NH4 a GLP study was performed according to OECD guideline 211 (BASF, 2013). Under semi-static conditions a NOEC (21 d) of 5.3 mg a.i./L (measured) for Daphnia magna was observed. The NOEC value was based on reproduction.
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.
