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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

A study with the analogue tetradecyl myristate showed this ester to be readily biodegradable: 67% (BOD) after 28 d (OECD 301C). Estimation using the QSAR program BIOWIN (v4.10) indicated that also tetradecyl laurate is readily biodegradable.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Reference is made to a study investigating the biodegradation of the analogue tetradecanoic acid, tetradecyl ester (CAS 3234-85-3). The study was performed according to OECD 301C (GLP) under aerobic conditions using a mixture of activated sludge from STP with freshwater from rivers and lakes, marine water and marine sediment as inoculum (Ministry of Economy, Trade and Industry, Japan, 1992). The test substance degraded to an extent of 67% (BOD) after 28 d and can be considered as readily biodegradable according to the OECD criteria (biodegradation is > 60% after 28 d, no 10-day window required). Performing QSAR calculations according to the program BIOWIN (v.4.10) confirmed that tetradecyl laurate can be expected to be readily biodegradable.