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Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor. In the USSR , it was known as carbophos , in New Zealand and Australia as maldison and in South Africa as mercaptothion .
Isomalathion is an impurity found in some batches of malathion. Whereas the structure of malation is, generically, RSP(S)(OCH 3) 2, the connectivity of isomalathion is RSPO(SCH 3)(OCH 3). It arises by heating malathion. Being significantly more toxic to humans than malathion, it has resulted in human poisonings. [1]
Malathion Index of chemical compounds with the same molecular formula This set index page lists chemical structure articles associated with the same molecular formula .
This is a list of insecticides.These are chemical compounds which have been registered as insecticides.The names on the list are the ISO common name for the active ingredient which is formulated into the branded product sold to end-users. [1]
The former is a precursor to malathion. In the Michalski reaction , a thiophosphate reacts with chlorine gas to give a diorganylphosphorylsulfenyl chloride: [ 5 ] (RO) 3 PS + Cl 2 → (RO) 2 P(O)SCl + RCl
Malathion is an organophosphate parasympathomimetic which binds irreversibly to cholinesterase. Malathion is an insecticide of relatively low human toxicity. In the former USSR, it was known as carbophos, in New Zealand and Australia as maldison and in South Africa as mercaptothion.[3] Suggested replacement text. Malathion is an insecticide.
In 1989, a sudden invasion of Mediterranean fruit flies (Ceratitis capitata, "medflies") appeared in California and began devastating crops.Scientists were puzzled and said that the sudden appearance of the insects "defies logic", and some speculated "biological terrorists" were responsible. [1]
Symptoms of exposure to this type of compound include cholinesterase inhibition, miosis, frontal headache, increased bronchial secretion, nausea, vomiting, sweating, abdominal cramps, diarrhea, lacrimation, increased salivation, bradycardia, cyanosis and muscular twitching of the eyelids, tongue, face and neck, possibly progressing to convulsions.