Registration Dossier
Registration Dossier
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EC number: 225-059-1 | CAS number: 4635-59-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Parent compound 4-chlorobutyryl chloride: Readily biodegradable according to OECD criteria.
Hydrolysis product 4-chlorobutyric acid: Readily biodegradable according to OECD criteria.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Parent comound 4 -chlorobutyryl chloride and hydrolysis product 4 -chlorobutyric acid:
The ready biodegradability of 4 -chlorobutyryl chloride (CAS 4635 -59 -0) was tested according to OECD 301A (Ready Biodegradability: DOC Die Away Test) using municipal activated sludge. The DOC removal was determined to be 90 - 100% after 14 days which demonstrate the ready biodegradablity of the substance (BASF AG, 1999, 99/0112/21/1).
4 -chlorobutyryl chloride hydrolyses rapidly, therefore the activated sludge was mainly exposed to its hydrolysis products 4 -chlorobutyric acid and hydrochloric acid.
Regarding the results of the key study on ready biodegradability, 4 -chlorobutyryl chloride and its hydrolysis product 4 -chlorobutyric acid are assessed to be readily biodegradable.
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