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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Four guideline ready biodegradation studies are available to 3 different methods. Two were duplicate determinations to the same protocol. In a closed bottle test, the substance reached 68% degradation after 28 days but did not meet the 10 day window criteria of 60%. The modified sturm test (CO2 evolution) was repeated in duplicate. Both showed degradation of >75% after 28 days but only one met the 10 day window criteria. Since the average of these two results did meet the 10 day criteria, it can be concluded that 2 -(2 -methoxyethoxy)ethanol is readily biodegradable and does meet the 10 day window, although this is marginal. However another study using this method showed rapid and 100% degradation after 28 days. A conclusion of ready biodegradability is also supported by QSAR modelling.

As the substance is identified as readily biodegradable in the screening studies, further biodegradation testing is not scientifically justified.