Oxydemeton-methyl

Oxides of nitrogen vapor la 86 11 -Oxoanderosterone lb 78 11 -Oxolanostenyl acetate la 62 Oxomemazine lb 354 17-Oxosteroids lb 78,79 Oxprenolol la 299 lb 268 Oxycodeinone lb 280 Oxydemeton methyl lb 164,165 Oxyhemoglobin, dipole moment la 97 Oxymorphone lb 280 Oxypertin lb 354 Oxytetracycline lb 271... 

K. Anitha, S.V. Mohan, SJ. Reddy, Development of acetylcholinesterase silica sol-gel immobilized biosensor — an application towards oxydemeton methyl detection. Biosens. Bioelectron. 20, 848—856 (2004). 

Panda BB. 1983. Effect of the insecticides, oxydemeton, methyl and thiodemeton, on the mitotic and meiotic chromosomes of barley (Hordeum vulgare). Environ Exper Botany 23 293-296. 

Szeto SY, Brown MJ. 1982. Gas-liquid chromatographic methods for determination of disulfoton, phorate, oxydemeton-methyl and their toxic metabolites in asparagus tissue and soil. J Agric Food Chem 30 1082-1086. 

Oxydemeton-methyl [301-12-2] Asellus brevlcaudus LC50 (96-h) 0.15 Johnson and Finley, 1980... 

Plant. In asparagus, oxydemeton-methyl was converted to the corresponding sulfone (Szeto and Brown, 1982). 

ChemicaPPhysical. Oxydemeton-methyl can be converted to the corresponding sulfone by hydrogen peroxide (Cremlyn, 1991). Emits toxic fumes of phosphorus and sulfur oxides when heated to decomposition (Sax and Lewis, 1987). 

Water Trichlorfon, dichlorvos, mevinphos, demethon-S-methyl, dimethoate, oxydemeton-methyl, fenamiphos, fenthion ... 

Figure 8. Reaction of oxydemeton methyl with trifluoroacetic anhydride (TFAA) and the GC characteristics of the two products fcis- and tram-dehydro-oxydemeton methyl) on 3% OV-17 at 190°C (34)...

Oxine-copper heterocyclic nitrogen, quinoline Oxolinic acid heterocyclic nitrogen, quinoline Oxycarboxin oxathiin, amide, sulfone Oxydemeton-methyl phosphoro organic, phosphoro thioate... 

Demeton oxydemeton methyl Demeton-S-methyl demeton-S-methyl sulfone... 

Potassium thiocyanate demeton-S-methyl, demeton-S-methyl sulfone, oxydemeton methyl, thiophanate... 

This subclass contains a single bond, sulfur to the phosphorus atom. Phosphorothiolates are also called phosphorothioates by many authors they do not distinguish a thiono sulfur =S from a thiolo sulfur -S-. An example of this group is oxydemeton-methyl. Oxydemeton-methyl is a systemic and contact insecticide and acaricide for controlling aphids, leafhop-pers, mites, thrips, and other sucking insects on vegetables, ornamentals, and field crops. It has an oral LD50 in rats of 65-75 mg/kg. 

The OP compounds are difficult to generalize with respect to their physical properties. They have moderate-to-considerable water solubility. Some organophosphate insecticides are water soluble, e.g., oxydemeton-methyl, azodrin, phosdrin, trichlorfon, and phosph-amidon. They also have moderate-to-considerable vapor pressures, generally in the range 10"3-10-5 mm Hg. Some organophosphate insecticides such as naled and dichlorvos are very volatile. This combination of physical and chemical properties makes the entire class of insecticides biodegradable and nonpersistent. 

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