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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 273-257-1 | CAS number: 68955-19-1 This substance is identified by SDA Substance Name: C12-C18 alkyl alcohol sulfuric acid sodium salt and SDA Reporting Number: 16-062-04.
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
96h LC50 (Danio rerio, mortality) = 1.3 mg/L (nominal concentration, OECD 203)
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 1.3 mg/L
Additional information
Toxicity of C12-18 AS Na (CAS 68955-19-1) to fish was investigated in a key GLP, flow-through study according to OECD guideline 203 with Danio rerio (van Egmond 1993). The 96-hour LC50 value was 1.3 mg/L (nominal concentration). The measured concentrations were in line with the nominal concentrations.
A supporting study was preformed according to EU Method C1 (Scholz 1997). In this semi-static test with the carp Cyprinus carpio, a LC50 96-h value of 17 mg a.i./L was measured. Further investigations on the toxicity of C12-18AS Na (CAS 68955-19-1) were carried out in a non-GLP study according to OECD guideline 203, with the golden orfe Leuciscus idus (Richterich 2004). In this study a LC50 48-h value of 9.3 mg a.i./L (nominal) was determined. Finally, a non-GLP study by Kamp (1992) was performed according to DIN 38412 (15) with golden orfes. A 48-h LC50 value was 16 mg a.i./L (nominal).
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.
