Registration Dossier
Registration Dossier
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EC number: 800-153-0 | CAS number: 1313206-64-2
Endpoint summary
Administrative data
Description of key information
Additional information
The registered substance, Amines, N-(C16-18 and C18-unsatd. alkyl)trimethylenedi-, diacetates is considered readily biodegradable (CAS 1313206-64-2) according to OECD guideline 301D test and GLP requirement. The validity criteria were fulfilled. The test substance can be considered as readily biodegradable.
Moreover, Hydrogenated C16-18 diamine (New CAS 133779-11-0/ Old CAS 68603 -64 -5) has been shown to be readily biodegradable and to be almost completely removed in a waste water treatment simulation test (OECD 303A test) by biodegradation. Rapid mineralisation is assumed and form the main mecanism of removal of this substance in the environment.
The substance is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions.
Based on intrinsic properties of Amines, N-(C16-18 and C18-unsatd. alkyl)trimethylenedi-, diacetates (high water solubility and low log Pow), the substance is not expected to bioaccumulate in organism tissues. The ionic interactions play a more important role than hydrophobic partitioning with organic matter for this substance. The log Koc is therefore considered as a poor predictor of the partitioning behaviour of cationic surfactants in the environment. The sorption test results are therefore not expressed in Koc but in their Kd or Kfads values. The mean KFads value for the four soils of 520 L/kg will be used as a realistic worst-case to derive the distribution constants for the alkyl-1,3-diaminopropanes. This Kd value of 520 L/kg corresponds with a Koc of 10400 L/kg. This latter Koc may be used to derive other Kd values for risk assessment purposes.
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