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EC number: 219-909-0
CAS number: 2568-90-3
With a log Kow of 2.75, butylal fulfils the criteria of REACH Annex IX,
Point 9.32 to predict its bioaccumulation potential. The bioaccumulation
potential of butylal is calculated with BCFBAF program (v3.01) as Log
BCF of 1.483 and BCF of 30.38 L/kg.
to REACH Annex IX, Point 9.3.2 (Bioaccumulation in aquatic species,
preferably fish), the study needs not be conducted if:
substance has a low potential for bioaccumulation (for instance a log
Kow < 3) and/or a low potential to cross biological membranes; or
and indirect exposure of the aquatic compartment is unlikely.
log Kow of 2.75, a study using animals is not justified.
bioaccumulation potential of butylal is calculated with BCFBAF program
(v3.00) as Log BCF of 1.483 and BCF of 30.38 L/kg.
Therefore, buthylal should not bioconcentrate in fish and aquatic
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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