CHLORPYRIFOS

Common name: Chlorpyrifos

Other name: Brodan, Detmol UA, Dowco 179, Dursban, Empire, Eradex, Lorsban, Paqeant, Piridane

CAS No: 2921-88-2

Chemical name: O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate

Empirical formula: C₉H₁₁Cl₃NO₃PS

Molecular weight: 350.59

Structural formula:

Physical & Chemical Properties:

Appearance: grayish-white to white viscouse liquid.

Bulk density: 1.398 g/cm³ (43.5°C)

Melting point: 42°C

Vapour pressure: 2.5 mPa, at 25°C

Solubility in water: 2 mg/L (25°C)

Solubility in organic solvent: soluble in benzene; acetone; chloroform; carbon disulfide; diethyl ether; xylene; methylene chloride; methanol, etc.

Octanon/water partition coefficient: Log P---4.96

Stability: stable at normal storage conditions.

Application: Chlorpyrifos is a broad-spectrum organothiophosphate acaricides, pyridine organothiophosphate insecticides and organothiophosphate nematicides, it is effective in controlling cutworms, corn rootworms, cockroaches, grubs, flea beetles, flies, termites, fire ants, and lice. It is used as an insecticide on grain, cotton, field, fruit, nut and vegetable crops, and well as on lawns and ornamental plants. It is also registered for direct use on sheep and turkeys, for horse site treatment, dog kennels, domestic dwellings, farm buildings, storage bins, and commercial establishments. Chlorpyrifos acts on pests primarily as a contact poison, with some action as a stomach poison.

Product available: 97%min technical; 48% EC, 5% G