Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The BCF programme in EPIWIN v.3.10 predicts a BCF of 3.16, indicating that bioaccumulation of n-Butyraldehyde is unlikely (Vinken R., 2007).


Regression-derived equations were also employed to determine the BCF. It was found to be between 1.13-2.75 (Lyman, W.J., 1990).


Using a Henry's Law constant of 1.2 x 10-4atm-cu m/mole, a log Kow of 0.88, and a regression-derived equation, an estimated bioconcentration factor (BCF) of 3.0 has been determined (US EPA).


These values suggest that the potential for bioconcentration of n-Butyraldehyde in aquatic organisms is low.

Additional information