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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 931-341-1 | CAS number: 68955-55-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The EC50 (48 h) for Daphnia magna is 2.4 mg AO/L. C12-18 AO and C12-14 AO exhibit similar acute toxicity to Daphnia.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 2.4 mg/L
Additional information
Two reliable studies are available for C12-18 AO. In the key study, performed according to OECD TG 202 under GLP [Noack M (2001)] Daphnia magna were exposed to C12-18 AO under static conditions for 48 hours at nominal concentrations of 0.75, 1.5, 3, 6, 12 and 24 mg AO/L. The EC50 (48 h) was 2.4 mg AO/L. In the supporting study also performed to OECD TG 202 under static conditions using Daphnia magna, the EC50 (48 h) was 4.5 mg AO/L.
Three reliable studies performed using Daphnia magna are available for C12-14 AO. All three studies were performed to OECD TG 202 under static conditions. The EC50 (48h) values (nominal) obtained were 3.1 mg AO/L [Noack M (2001)], 2.9 mg AO/L [Mark U & Meuwsen IJB (1990)] and 4.2 mg AO/L [Beneventi S (2005)].
Overall, it can be concluded that the C12-18 AO and C12-14 AO exhibit similar acute toxicity to Daphnia magna.
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.
