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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
The substance is not expected to biodegrade. Biodegradation of a structural analogue (CaDDNSA) was shown to be 31% at maximum in a test for ready biodegradability. Based on the structure no hydrolysis under environmental conditions was predicted.
The bioaccumulation of the substance was assessed by using a validated QSAR model. Supporting evidence for the low bioaccumulation potential can be seen in the the size of molecule (Dmax > 34 Angstroms). Molecules of this size are generally considered to have low bioaccumulation potential due to their reduced uptake and low membrane permeability (Guidance on information requirements and chemical safety assessment Chapter R.11: PBT Assessment).
In accordance with REACH guidance indicating that “Estimated values are essential for substances for which experimental measurement is not feasible i.e. for "difficult substances”, the log Koc for DDNSA that will be used for the environmental assessment will be 5.25, the average of the values estimated by modeling.
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.
