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EC number: 923-201-3 | CAS number: -
The PBT Assessment for UMA 121 is based on the criteria set out in the “Guidance on information requirements and chemical safety assessment, Chapter R.11: PBT Assessment” (ECHA, 2014).
UMA 121 is not considered to be inherently biodegradable based on a study conducted according to OECD 302C (14.8 - 16.6% based on O2 consumption in 28 days). Persistency can therefore not be excluded, and the test substance needs to be considered as very persistent (vP).
The exposure of aquatic organisms to UMA 121 is expected to be minimal, due to the low solubility and high adsorption potential of the substance. In the unlikely event of exposure, uptake of UMA 121 by organisms is considered unlikely, based on the high molecular weight of the UMA homologues (> 500 mg/L). The HPMA constituent is expected to have low bioaccumulation potential, due to its low log Kow value. Based on the available information, UMA 121 is not considered to be bioaccumulative (B) or very bioaccumulative (vB).
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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