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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Under test conditions no biodegradation observed: 18.5% (CO2 evolution) in 28 days and 28 % (CO2 evolution) in 60 days 

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

One study investigating the ready biodegradability of DiPE triisononanoate triethylhexanoate (CAS No. 68443-84-5) is available. Based on this GLP study according to OECD 301B a degradation of 18.5% after 28 days is observed (Muckle, 2012). The study was prolonged up to 60 days; the pass level of 60% CO2 evolution; however was not reached. After 60 days 28% biodegradation based on CO2 evolution was observed. Therefore in accordance with Regulation (EC) No. 1907/2006, the substance is regarded as very persistent (v P). The toxicity controls showed that no inhibition of aquatic microorganisms occurred (29 mg/L test material concentration).