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Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

DEGDB:

Biodegradability:

- Key study, reliability 1, OECD 301B - Modified stturm test - readily biodegradable

- Supporting study, reliability 1, OECD 301D - Closed Bottle Test - not readily biodegradable

- Supporting study, reliability 1, ISO Method 11734 - Anaerobix Biodegradability of Organic Chemicals - Ultimately biodegradable under anaerobic conditions

- Supporting study, reliability 2, OECD 301A - Ready Biodegradability: DOC Die Away Test - readily biodegradable

DPGDB:

Biodegradability:

- Key study, reliability 1, OECD 301B - Modified sturm test - readily biodegradable

- Supporting study, reliability 1, OECD 301D - Closed Bottle Test - not readily biodegradable

- Supporting study, reliability 1, ISO Method 11734 - Anaerobix Biodegradability of Organic Chemicals - Ultimately biodegradable under anaerobic conditions

- Supporting study, reliability 2, OECD 301A - Ready Biodegradability: DOC Die Away Test - readily biodegradable

Additional information

Both components of the Reaction mass of dipropylene glycol dibenzoate (DPGDB) and diethylene glycol dibenzoate (DEGDB) were demonstrated to be readily biodegradable in a Modified Strum Ready Biodegradability test. DPGDB achieved 62% degradation by day 12, meeting the 10 -day window criterion and 85% by test day 28. In addition, DEGDB achieved 71% after 10 days and 93% by test termination. Based on these data, the reaction mass of DPGDB and DEGDB is expected to be readily biodegradable.