Specification :

Common Name malathion
IUPAC diethyl (dimethoxyphosphinothioylthio)succinate
or
S-1,2-bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate
CAS No. 121-75-5
Properties
Clear to amber liquid with a mercaptan odor. Specific gravity 1.23 at 25°C. Melting point 2.85°C. Vapor pressure 4 x 10-5 mm Hg at 30°C. Miscible in most organic solvents; limited solubility in aliphatic hydrocarbon.