Registration Dossier
Registration Dossier
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EC number: 815-305-1 | CAS number: 138938-64-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation in water screening tests: 1% (DOC) biodegradation in 28 days (OECD 301C). No significant biodegradation is expected for the silanol hydrolysis product
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The key study is the only biodegradation study available for the substance. In a test conducted in accordance with OECD 301C (Modified MITI Test) and in compliance with GLP, the test substance attained 1% (DOC) degradation in 28 days.
1-(tert-butyldimethylsilyl)piperazine hydrolyses within the timescale of the ready biodegradation study to form tert-butyldimethylsilanol and piperazine.
Piperazine was reported as not readily biodegradable but inherently biodegradable (OECD 2004).
No significant biodegradation is expected for the silanol hydrolysis products.
Reference:
OECD (2004). SIDS Initial Assessment Profile, Piperazine, CAS No. 110-85-0. SIAM 18, 20-23 April 2004
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