Registration Dossier

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

BCF = 15 (estimated from measured log Kow; ECT, 2009) 

Key value for chemical safety assessment

BCF (aquatic species):
15 dimensionless

Additional information

In accordance with column 2 of Annex IX, the study does not need to be conducted if the substance has a low potential for bioaccumulation. The log Kow of 2.3 for n-butyl acetate (OXEA, 2009; T10198) indicates a low potential for bioaccumulation. In addition the substance is readily biodegradable (Waggy et al., 1994). Therefore and for reasons of animal welfare a fish study is not performed.

Based on a measured log Pow of 2.3, the BCF of n-butyl acetate was estimated to be 15.3 by using the BCFBAF program (v3.00). This estimate refers to the uncharged molecule.

The earlier version of this software (BCFWIN) is listed in the REACH Guidance document. On average, the goodness of fit of the derived methodology is within one-half log unit for the compounds under study.

According to the BCF, n-butyl acetate has a low potential for bioaccumulation in aquatic organisms.