Registration Dossier
Registration Dossier
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EC number: 274-092-8 | CAS number: 69709-01-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation in water: screening tests: 36% in 28 days (OECD 301F)
Key value for chemical safety assessment
Additional information
36% Biodegradation in 28 days was determined for the substance in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP (OECD 301 F). The result is considered to be reliable. The key study is supported by a biodegradation of 22% in 28 days which was determined for the submission substance in accordance with OECD Test Guideline 301C and in compliance with GLP.
The substance is expected to hydrolyse within the timescale of the biodegradation study to form 1,1,3,3-tetramethyl-2-[3-(trihydroxysilyl)propyl]guanidine and methanol. The biodegradation observed in the study is mainly attributable to the biodegradation of the methanol hydrolysis product.
Methanol is readily biodegradable (OECD 2004).
No significant biodegradation is expected for the silanol hydrolysis product.
Reference:
OECD (2004): SIDS Initial Assessment Report for SIAM 19, Berlin, Germany, 18-20 October 2004, Methanol, CAS 67-56-1.
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