NOMENCLATURE
Common name ethoprophos (BSI, E-ISO, (m) F-ISO); ethoprop (ANSI, ESA, Society of Nematologists (USA))
IUPAC name O-ethyl S,S-dipropyl phosphorodithioate
Chemical Abstracts name O-ethyl S,S-dipropyl phosphorodithioate
CAS RN [13194-48-4] EEC no. 236-152-1 Development codes VC9-104 (Mobil)
PHYSICAL CHEMISTRY
Mol. wt. 242.3 M.f. C8H19O2PS2 Form Pale yellow liquid. B.p. 86-91 ºC/0.2 mmHg V.p. 46.5 mPa (26 ºC) KOW logP = 3.59 (21 ºC) S.g./density 1.094 (20 ºC) Solubility In water 700 mg/l (20 ºC). In acetone, ethanol, xylene, 1,2-dichloroethane, diethyl ether, ethyl acetate, petroleum spirit, cyclohexane >300 g/kg (20 ºC). Stability Very stable in neutral and weakly acidic media. Rapidly hydrolysed in alkaline media. Stable in water up to 100 ºC at pH 7. F.p. 140 ºC (closed cup)
APPLICATIONS
Biochemistry Cholinesterase inhibitor. Mode of action Non-systemic nematicide and soil insecticide with contact action. Uses Control of plant-parasitic nematodes and soil insects in ornamentals, potatoes, sweet potatoes, tomatoes, vegetables, maize, soya beans, peanuts, cucurbits, strawberries, citrus, tobacco, bananas, pineapples, sugar cane, turf, and other crops, at 1.6-6.6 kg a.i./ha. Formulation types EC; GR. Compatibility Incompatible with alkaline materials.
