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EC number: 931-292-6
CAS number: 308062-28-4
A number of studies are available that show the substance is readily biodegradable, both as a whole and the individual alkyl dimethylamine oxide constituents.
In the key study [Clarke (2005)] the ready biodegradability of the
substance was assessed according to OECD TG 301 B (CO2 evolution test)
under GLP. 90 % degradation (based on CO2 evolution) was observed after
28 days when the inoculum (domestic activated sludge) was treated with
the substance at a concentration of 10 mg C/L. The test was performed in
duplicate. The substance reached 42 % degradation on Day 2 and 72 % on
Day 8, hence meeting the 10 day window requirement for ready
biodegradability. The reference substance, sodium benzoate, reached 29 %
biodegradation at Day 1 and 61 % at Day 2, meeting the validity criteria
established in the guideline for a reference substance.
Several supporting studies where the substance was tested to OECD TG 301
B [Casteel (2007)] [Hirschen (2001)], OECD TG 301 D [Balk & Hantink-De
Rooij (1987)] or DIN 38 409 H 41 [Klein (1986)] are available. The
substance was found to be readily biodegradable in all of these studies.
Casteel (2007) also reports the results of OECD TG 301 B studies
performed using the individual alkyl dimethylamine oxide constituents
(from C10 -C16). Each of these constituents was found to be readily
biodegradable, meeting the 10 day window.
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.
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