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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 939-331-9 | CAS number: 1394155-71-5
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
18h NOEC (Pseudomonas putida) = 550 mg/L (growth inhibition)
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 550 mg/L
Additional information
Since no reliable toxicity tests with microorganisms are available for C16-18 and C18 unsatd. AS Na (CAS 1394155-71-5), in accordance to Regulation (EC) No. 1907/2006 Annex XI, 1.5 a read-across to another structurally related category member was conducted. Read-across data from C16-18AS Na (CAS 68955-20-4) were used, since toxicity of alkyl sulfates is dependent on the carbon chain length.
One reliable study with Pseudomonas putida is available for C16-18AS Na (CAS 68955-20-4). The key study (Steber 1988) followed the procedure of cell multiplication inhibition test according to Bringmann and Kühn (1977). The growth inhibition of Pseudomonas putida was recorded after 18 hours of exposure to the test substance. The 18-hour NOEC value was determined to be 550 mg a.i./L (nominal concentration).
Due to structure and property similarities with the tested category member it can be concluded that the above result applies also to C16-18 and C18 unsatd.AS Na (CAS 1394155-71-5). The 18-hour NOEC value for microorganisms is 550 mg/L. This value was used for the PNEC STP derivation for C16-18 and C18 unsatd.AS Na (CAS 1394155-71-5).
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.
