Chemical name: diethyl (dimethoxyphosphinothioylthio)succinate orS-1,2-bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate
CAS no.: 121-75-5

Structural formula:

Molecular formula: C₁₀H₁₉O₆PS₂
Physical & chemical property:
Physical State: Clear, amber liquid
Melting point: 2.85°C
Density: 1.23 (25°C)
Solubility: In water 145mg/l (25°C). Miscible with most organic solvents, e.g. alcohols, 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 acids and alkalis.
Specification: 95% TC, 85% EC, 53% EC, 50% WP
Uses: Non-systemic insecticide and acaricide with contact, stomach, and respiratory action. Used to control coleoptera, Diptera, Hemiptera, Hymenoptera and Lepidoptera in wide range of crops, including cotton, pome, soft and stone fruit, potatoes, rice and vegetables. Used extensively t control major arthropod disease vectors(Culicidae) in public health programmes, ectoparasites (Diptera, Acari, Mallophage) of cattle, poultry, dogs and cats, human head and body lice (Anoplura), household insects (Diptera, Orthoptera), and for the protection of stored grain.