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Environmental fate & pathways

Phototransformation in air

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Description of key information

DT50 (24h-day) = 51 hours (AOPWIN v1.92)

Key value for chemical safety assessment

Additional information

No experimental data evaluating the potential for photodegradation of methyl octanoate (CAS No.111-11-5) in air are available. Based on its vapour pressure value (71.9 Pa at 25 ºC), this substance can be expected to show potential for volatilization into air. Nevertheless, once present in the atmosphere, methyl octanoate is susceptible to undergo indirect photodegradation with an estimated half-life of 51 hours (QSAR calculation, AOPWIN v1.92, reaction with OH-radicals, 24h-day)(López Parrón, 2011). As this study is not a standard information requirement according to Regulation (EC) No. 1907/2006 and there is no indication from the CSA according to Annex I on the need to investigate further the fate and behavior of the substance (Annex X requirement), no testing is considered necessary.