Registration Dossier
Registration Dossier
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EC number: 224-548-7 | CAS number: 4404-43-7
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
OVERALL OH Rate Constant = 316.0596 E-12 cm3/molecule-sec [Cis-isomer]
OVERALL OH Rate Constant = 323.6596 E-12 cm3/molecule-sec [Trans-isomer]
Half-Life = 24.366 Min (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
Half-Life = 23.794 Min (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]
Key value for chemical safety assessment
- Half-life in air:
- 24 min
Additional information
Half-life and degradation rates was estimated with AOPWIN v1.92.
Based on calculations the substance is indirectly photodegraded by reaction with hydroxyl radicals in the atmosphere with half-lives of about 24 minutes taking into account a 12-h day and a mean OH radical concentration of 1.5E06 radicals per cm³.
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