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Common name carbosulfan (BSI, ANSI, draft E-ISO, (m) draft F-ISO)
IUPAC name 2,3-dihydro-2,2-dimethylbenzofuran-7-yl (dibutylaminothio)methylcarbamate
Chemical Abstracts name 2,3-dihydro-2,2-dimethyl-7-benzofuranyl [(dibutylamino)thio]methylcarbamate
CAS RN [55285-14-8]
PHYSICAL CHEMISTRY
Mol. wt. 380.5 M.f. C20H32N2O3S Form Orange to brown clear, viscous liquid. B.p. 124-128 ºC V.p. 0.041 mPa (25 ºC) Henry 5.20 ´ 10-2 Pa m3 mol-1 (calc.) S.g./density 1.056 (20 ºC) Solubility In water 0.3 ppm (25 ºC). Miscible with most organic solvents, e.g. xylene, hexane, chloroform, dichloromethane, methanol, ethanol, acetone, etc. Stability Hydrolysed in aqueous media; DT50 (25 ºC) in pure water <1 h (pH 4), 22 h (pH 6), 7.6 d (pH 7), 14.2 d (pH 8), >58.3 d (pH 9). F.p. 95 ºC (closed cup)
APPLICATIONS
Biochemistry Cholinesterase inhibitor; activity is due to in vivo cleavage of the N-S bond, resulting in conversion to carbofuran.
Mode of action Systemic insecticide with contact and stomach action.
Uses Control of a wide range of soil-dwelling and foliar insect pests. Examples of uses include control of millipedes, springtails, symphylids, wireworms, pygmy mangold beetles, frit flies, white grubs, aphids, caterpillars, flea beetles, Colorado beetles, stem borers, leafhoppers, planthoppers, codling moth, scales and free-living nematodes. The product is used in a wide range of crops, e.g. cotton, sugar beet, potatoes, rice, top fruit, citrus, maize, vegetables, sugar cane and coffee.