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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 half-life of hydrolysis of DPGEE could not be determined. Measured degradation/loss over 5 days was 4.93% at pH 4 and 5.35% at pH7 and 0% at pH 9. Hydrolysis rate constants cannot be estimated for compounds of this type which are generally regarded as hydrolytically stable at pH ranges normally encountered in the environment.


In a valid guideline OECD 301F and GLP manometric respiration study, DPGEE was found to be readily biodegradable, with a BOD28 of 81%. Degradation of 74% was seen within the 10 day window.The substance was also assessed in a guideline inherent biodegradation study. A biodegradation rate greater than 70% (98%) in this test confirmed inherent ultimate biodegradability.


The adsorption coefficient (Koc) of ethoxypropoxy propanol is <17.8 (log10 Koc<1.25) at 40 Celsius as determined by an HPLC method. The QSAR (KOCWIN version 2.0; EPISUITE) values are supportive in that they yield a non-corrected log Koc value of 0.1507 and corrected value of -0.8534 derived from an estimated log Kow value of -1.40. These are of similar order to the experimental result. It can be concluded that DPGEE will have a low potential for adsorption to soil or sediment.