EPN

• Product Name:EPN
• Synonyms: ENTl7798 Benzenephosphonic acid, thiono-, ethyl-(p-nitrophenyl) ester benzenephosphothionicacid,ethyl-4-nitrophenylester ENT 17,798 EPN Solution, 100ppm Phenol, p-nitro-, O-ester with O-ethyl phenyl phosphonothioate Phenylphosphonothioate, O-ethyl-O-p-nitrophenyl- Phenylphosphonothioic acid O-ethyl O-p-nitrophenyl ester
• CAS:2104-64-5
• MF:C14H14NO4PS
• MW:323.3
• EINECS:218-276-8
• Mol File:2104-64-5.mol
• 

<em>Biological.</em> From the first-order biotic and abiotic rate constants of EPN in estuarine water and sediment/water systems, the estimated biodegradation half-lives were 6.2 and 9.2 days, respectively (Walker et al., 1988).<br/> <em>Soil.</em> Though no products were reported, the half-life in soil is 15–30 days (Hartley and Kidd, 1987).<br/> <em>Photolytic.</em> EPN may undergo direct photolysis since the insecticide showed some absorption when a 1,4-dioxane was irradiated with UV light (l >290 nm) (Gore et al., 1971).<br/> <em>Chemical/Physical.</em> On heating, EPN is converted to the S-ethyl isomer (Worthing and Hance, 1991). Releases toxic fumes of phosphorus, nitrogen and sulfur oxides when heated to decomposition (Sax and Lewis, 1987; Lewis, 1990). Rapidly hydrolyzed in alkaline solutions to p-nitrophenol, alcohol and benzene thiophosphoric acid (Sittig, 1985).