Registration Dossier
Registration Dossier
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EC number: 205-498-5 | CAS number: 141-75-3
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Parent compound butyryl chloride and hydrolysis product butyric acid: Significant accumulation in organisms is not to be expected.
Key value for chemical safety assessment
Additional information
A study is not required for this tonnage band. Moreover, and in accordance with Regulation (EC) 1907/2006, Annex IX, Section 9.3.1, Column 2, the study does not need to be conducted if the substance has a low potential for bioaccumulation (for instance a log Kow ≤ 3). Butyryl chloride (CAS 141-75-3) has an estimated log Kow of 0.51 (KOWWIN v1.68). The substance decomposes rapidly to form HCl and butyric acid (CAS 107-92-6). The experimental log Kow of 0.79 (Hansch, C et al., 1995) for the hydrolysis product butyric acid does not indicate a significant potential for bioaccumulation.
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.
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