Malathion 50% Ec By National Pesticides & Chemicals

Our offered Malathion 50% EC is a widly used formulation in public health.

Malathion
Insecticide, acaricide :organophosphorus

NOMENCLATURE:-
Common name malathion (BSI, E-ISO, (m) F-ISO, ESA, BAN); maldison (Australia, New Zealand); malathon (JMAF); mercaptothion (South Africa); carbofos (USSR); no name (Germany); mercaptotion (Argentina)
IUPAC name diethyl (dimethoxythiophosphorylthio)succinate; S-1,2-bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate
Chemical Abstracts name diethyl [(dimethoxyphosphinothioyl)thio]butanedioate
CAS RN [121-75-5] EEC no. 204-497-7 Development codes EI 4049 (Cyanamid) Official codes OMS 1; ENT 17 034

PHYSICAL CHEMISTRY:-
Composition Tech. grade is c. 95% pure. Mol. wt. 330.4 M.f. C10H19O6PS2 Form Tech. is a clear, amber liquid. M.p. 2.85 A C B.p. 156-157 A C/0.7 mmHg. V.p. 5.3 mPa (30 A C) KOW logP = 2.75 Henry 1.21 A' 10-2 Pa m3 mol-1 (calc.) S.g./density 1.23 (25 A C) Solubility In water 145 mg/l (25 A C). Miscible with most organic solvents, e.g. esters, ketones, ethers, aromatic hydrocarbons. Slightly soluble in petroleum ether and some types of mineral oil. Stability Relatively stable in neutral, aqueous media. Decomposed by strong acids and by alkali; hydrolysis DT50 107 d (pH 5), 6 d (pH 7), 0.5 d (pH 9) (all 25 A C); F.p. 163 A C (Pensky-Martens closed cup)

APPLICATIONS:-
Biochemistry Cholinesterase inhibitor; proinsecticide, activated by metabolic oxidative.