Registration Dossier
Registration Dossier
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EC number: 952-252-4 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The registered substance, the Amines, C16-18 (even numbered)-alkyl , salts with phosphoric acid, mono- and di-C16-18 (even numbered) alkyl esters is considered as not readily biodegradable according to a key study OECD 301F and GLP.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
Supporting studies are available on both constituents, which are both a part of the registered Multi-constituent (EC = 952-252-4).
Based on the available GLP studies on biodegradation, primary alkylamine are estimated to be readily biodegradable. A key study on hydrogenated tallow alkylamine relates 75 % of biodegradation after 28 days according an OECD 301D protocol (new CAS 90640 -32 -7; CAS 61788 -33 -8) Considering that the test item is an organic uvcb, the 10 window criteria do not apply.
Phosphoric acid, octadecyl ester (CAS 39471-52-8) is not readily biodegradable according to an OECD 301 B (28% in 28 days) under GLP.
The result observed with the key study is confirmed by the supporting studies. All these studies considered together in a Weight of Evidence allow concluding that the registered substance is considered as not readily biodegradable.
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.
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