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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In a GLP guideline study conducted according to OECD 301 B (Ready Biodegradability: CO2 evolution test) 6-methyl-2-oxoperhydropyrimidin-4-yl urea proved to be readily biodegradable but failing the 10-day window criterion. After 28 days the substance was biodegraded by 85.6% (based on ThCO2). The substance is thus expected to be readily degraded by microorganisms in aquatic and terrestrial environments. In accordance with Regulation (EC) No. 1907/2006, column 2, -, further simulation tests on water and sediment or soil biodegradation are therefore not necessary.