Registration Dossier
Registration Dossier
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EC number: 222-613-4 | CAS number: 3555-47-3
Endpoint summary
Administrative data
Description of key information
M4Q is predicted to hydrolyse with a half-life >200 - 2000 h at pH 7 and
25°C, based on an accepted estimation method
A half-life of 9 days for reaction with hydroxyl radicals in air has
been calculated for M4Q. Phototransformation in water and soil are not
expected to be significant removal processes for M4Q.
Biodegradation of 0% in 28 days has been read-across from a
structurally-related substance M3T.
Table 4.1.12 Degradation rates
Degradation rate in water: |
Hydrolysis half-life >200-2000 hours at pH 7 and 25°C for removal of parent (QSAR). No significant biodegradation of silanol hydrolysis product expected. |
Degradation rate in sediment: |
No data are available regarding degradation in sediment. |
Degradation rate in soil: |
No data are available regarding degradation in soil. |
Degradation rate in air: |
Rate constant for reaction with OH radicals in air: 1.79 E-12 cm3 molecule-1 second-1 (half-life 9 days) (Calculated) |
Additional information
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