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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 248-778-2 | CAS number: 28016-00-4
Endpoint summary
Administrative data
Description of key information
Additional information
The bioaccumulation of the substance was assessed by using a validated QSAR model. No definite measured logPow is available for the substance (result >6.5). In the BCFBAF QSAR zinc salts are not recognised as salts, but e.g. Na, Li and K salts are recognised. When the program recognises a salt, the concomitant acid is modelled. The same approach is therefore taken for the zinc salt of DNNSA. The measured logPow value of the acid (>6.6) was taken as starting point. The BCF is 56.2 -70.8 L/kg ww.
As the BCF is less than 500 the substance is not considered to significantly bioaccumulate in aquatic species.The high molecular weight (984.8) and the large molecular size (Dmax > 19 Angstroms) of the test substance also support its low bioaccumulation potential. 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).
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.
