Ramban (Chlorpyrifos 20% Ec) Insecticide

We are engaged in offering excellent quality Ramban (Chlorpyrifos 20% EC) Insecticide to our valuable clients.

NOMENCLATURE
Common name chlorpyrifos (BSI, E-ISO, ANSI, ESA, BAN); chlorpyriphos ((m) F-ISO, JMAF); chlorpyriphos-ACthyl ((m) France)
IUPAC name O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
Chemical Abstracts name O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate
CAS RN [2921-88-2] EEC no. 220-864-4 Development codes Dowco 179 (Dow) Official codes OMS 971; ENT 27 311

PHYSICAL CHEMISTRY
Mol. wt. 350.6 M.f. C9H11Cl3NO3PS Form Colourless crystals, with a mild mercaptan odour. M.p. 42-43.5 A C V.p. 2.7 mPa (25 A C) KOW logP = 4.7 Henry 6.76 A' 10-1 Pa m3 mol-1 (calc.) S.g./density 1.44 (20 A C) Solubility In water c. 1.4 mg/l (25 A C). In benzene 7900, acetone 6500, chloroform 6300, carbon disulfide 5900, diethyl ether 5100, xylene 5000, iso-octanol 790, methanol 450 (all in g/kg, 25 A C). Stability Rate of hydrolysis increases with pH, and in the presence of copper and possibly of other metals that can form chelates; DT50 1.5 d (water, pH 8, 25 A C) to 100 d (phosphate buffer, pH 7, 15 A C).

APPLICATIONS
Biochemistry Cholinesterase inhibitor. Mode of action Non-systemic insecticide with contact, stomach, and respiratory action.