Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

According to REACH Annex IX, Point 9.3.2 (Bioaccumulation in aquatic species, preferably fish), the study needs not be conducted if:

– the substance has a low potential for bioaccumulation (for instance a log Kow < 3) and/or a low potential to cross biological membranes; or

– direct and indirect exposure of the aquatic compartment is unlikely.

With a log Kow of 2.75, a study using animals is not justified.

The bioaccumulation potential of butylal is calculated with BCFBAF software (v3.00) as Log BCF: 1.48 and BCF: 30.38 L/kg.