Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The test substance is considered not readily biodegradable, a biodegradation of 6% was reached at Day 28 in a test performed according to the OECD 301B testing guideline and GLP. This is likely to be due to low bioavailability related to the insolubility of the test substance.


 


As the registered substance cannot be considered readily biodegradable, the identification of biotic degradation products is a standard information requirement according to Annex IX of the REACH regulation. The likely aerobic biodegradation products of the three constituents of the UVCB were identified and assessed for their P and B properties, by using the EAWAG BBD Pathway Prediction System and the EPA EPISUITE tools (KOWWIN, BCFBAF and BIOWIN). The three parent substances and their degradation products do not fulfill PBT nor vPvB screening criteria.


 


In accordance with column 2 of Annex IX of EU Regulation 1907/2006, the simulation tests in water/sediment and in soil were waived. Indeed, the registered UVCB is highly insoluble, its degradation products are not PBT neither vPvB and the chemical safety assessment did not indicate the need to investigate further the biodegradation potential.