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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 204-812-8 | CAS number: 126-92-1
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
48h EC50 (Daphnia magna, immobility) = 483 mg/L (measured concentration; EU Method C.2) .
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 483 mg/L
Additional information
One GLP study investigating short-term toxic effects of C8-isoAS Na (CAS 126-91-2) to Daphnia magna is available (Scholz 1995). The test was performed according to EU Method C.2 under static conditions. Inhibition of mobility of daphnids caused by the test substance was determined after 24 and 48 of static exposure to five test concentrations up to 697 mg a.i./L (measured concentration equal to 900 mg a.i./L of nominal concentration). The results show that the 48-hour EC50 value was 483 mg a.i./L (measured concentration).
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.
