Registration Dossier
Registration Dossier
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EC number: 216-913-4 | CAS number: 1696-20-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
4-Acetylmorpholine (CAS 1696-20-4) is readily biodegradable following a weight-of-evidence approach. In a Zahn-Wellens test (OECD 302B) with 4 -acetylmorpholine was determined to be inherently biodegradable. A ready biodegradable test (OECD 301A) with the structurally similar substance 4 -morpholinecarbaldehyde (CAS 4394 -85 -8) was determined to readily biodegradable according to OECD criteria.
The following results with 4-Acetylmorpholine and the structurally similar 4 -morpholinecarbaldehyde were considered:
- CAS 1696 -20 -4, 4 -acetylmorpholine: BASF AG (1992; Study No. 91/1665/10/1): OECD 302B, domestic activated sludge: 98% after 21 d (lag phase 5 to 6 d): inherently biodegradable
- CAS 4394 -85 -8, 4 -morpholinecarbaldehyde: BASF AG (1997). Study No. 96/0625/21/2: OECD 301A, domestic activated sludge: 96% in 21 d (lag phase: 14 d): readily biodegradable
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