Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

No biodegradation data is available on the multi-constituent substance itself. Experimental data is available on one major components however and a closely related member of the homologous series. In a guideline study, the substance 2-(2-(2-methoxyethoxy)ethoxy)ethanol was found to be readily biodegradable and met the 10 day window. Full degradation occured within 13 days. In a guideline study, the substance 3, 6, 9, 12-tetraoxotridecanol was found to be readily biodegradable but did not meet the 10 day window. A QSAR suggests that both of these substances and PentaEGME are readily biodegradable, but that there is a slight trend towards slower degradation with increasing molecular weight. A conservative conclusion therefore, based on the experimental data available and the trends seen with the QSAR, is that the multi-constituent substance is readily biodegradable but may not meet the 10 day window.