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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 236-164-7 | CAS number: 13197-76-7
Endpoint summary
Administrative data
Description of key information
Hydrolysis
Dodecyl(2-hydroxy-3-sulphonatropropyl)dimethylammonium is a UVCB substance, thus it is anticipated that there will be technical limitations regarding chemical analysis, which will mean that verifying analytical results from a hydrolysis study will not be technically feasible. The hydrolysis data requirement has therefore been waived.
Biodegradation
The biodegradability of dodecyl(2-hydroxy-3-sulphonatopropyl)dimethylammonium was determined in accordance with the version of OECD TG 301C (MITI-I test) that is the standard method used under Japanese law for the notification of new chemical substances in Japan. The test substance was applied at 100 mg/L in the presence of a composite inoculum at a concentration of 30 mg suspended solids/L. Biochemical oxygen demand (BOD) was recorded continuously during the 28-day incubation and was related to the theoretical demand (ThOD) that corresponds to mineralisation of all components to their highest oxidation state, based on a composite empirical formula representing the sum of all components. In addition, measurements of dissolved organic carbon (DOC) were made in all vessels at the end of the test and the media were also analysed by LC-MS to detect residues of constituents initially present and undegraded breakdown products and intermediates.
According to OECD TG 301C, the criterion of ready biodegradability is that the percentage biodegradation by BOD reaches 60% on Day 28. Since the mean measured BOD reached 63% ThOD after 28 days, the test item is considered readily biodegradable
Adsorption / desorption
In accordance with REACH Annex VIII column 2, the study does not need to be conducted if, based on the underlying physicochemical properties, the substance is expected to have a low potential for adsorption (e.g. the substance has a low octanol-water partition coefficient). The Log Kow value of dodecyl(2-hydroxy-3-sulphonatropropyl)dimethylammonium was calculated using KOWWIN (v1.68) to be -1.30, indicating low potential for adsorption.
Additional information
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.
