Registration Dossier
Registration Dossier
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EC number: 921-836-0 | CAS number: 1190402-12-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 69% (CO2 evolution) in 28 days (OECD 301B)
Key value for chemical safety assessment
Additional information
One study investigating the ready biodegradability of Mixed esters of fatty acid C16 and C16-C18-unsatd. with adipic acid and pentaerythritol is available. The GLP study was conducted according to OECD guideline 301B under aerobic conditions using non-adapted activated sludge as inoculum (Bizzaro & Limiroli, 2012). Based on inorganic C analysis a mean degradation of 69% was observed after 28 days. The 10-day window was not passed; however, as the test substance is a mixture of components with different chain-lengths, sequential (instead of concurrent) biodegradation takes place. Thus, referring to Annex I to the OECD Guideline for The Testing of Chemicals 'Revised introduction to the OECD guidelines for testing of chemicals, section 3' (OECD, March 2006), the 10-day window should not be considered for the UVCB substance. Hence, the substance can be regarded as readily biodegradable.
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