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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Not readily biodegradable: 6% (CO2 evolution) after 60 d (OECD 301B)

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

The ready biodegradability of 2,2-bis[[(1-oxoisononyl)oxy]methyl]-1,3-propanediyl diisononanoate (CAS 93803-89-5) was investigating according to OECD 301B (Muckle, 2012).Activated sludge from a wastewater treatment plant was used as inoculum.Activated sludge microorganisms were exposed to a test substance concentration of 28.95 mg/L (mean) under aerobic conditions for an extended duration of 60 d. The results indicated that the test substance reached a mean degradation of 6%. Therefore, the test substance is not readily biodegradable according to the OECD criteria.