... .: 2921-88-2 2. Common name: chlorpyrifos 3. Commodity name: chlorpyrifos(ANSI,ISO,BSI) 4. Chemical name: O,O-dieth 1. CAS NO.: 2921-88-22 ... . Chemical name: O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)phos-phorothioate5. Molecular formula: C9H11Cl3NO3PS 6. Structural formula:7 ... °C).Melting Point: 41.5~43.5°C.Vapour Pressure: 2.5mPa(25°C).Solubility: 1.2mg/l in water, readily ...