Product Name |
Azamethiphos |
CAS No. |
35575-96-3 |
Categories |
Insecticides |
Chemical Structure |
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NOMENCLATURE phosphorothioate; 6-chloro-3-dimethoxyphosphinoylthiomethyl-1,3-oxazolo[4,5-b]pyridin-2
(3H)-one dimethyl phosphorothioate EEC no.: 252-626-0 |
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PHYSICAL CHEMISTRY Mol. wt.: 324.7; M.f.: C9H10ClN2O5PS; Form: Colourless crystals; (tech. is a beige to grey powder). M.p.: 89C. V.p.: 0.0049 mPa (20C). KOW: logP = 1.05; Henry: 1.45x10-6 Pa m3 mol-1 (calc.) S.g./density: 1.60 (20C). Solubility: In water 1.1 g/l (pH 7, 20C). In dichloromethane 610, benzene 130, methanol 100, n- octanol 5.8 (all in g/kg, 20C). Stability: Unstable in acids and alkalis; DT50 (20C) (calc.): 800 h (pH 5), 260 h (pH 7), 4.3 h (pH 9). F.p.: >150C (Marcusson, without stirring). |
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APPLICATIONS
good residual activity.
tsetse flies, cockroaches, and other public hygiene pests. |
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MAMMALIAN TOXICOLOGY
irritating to skin (rabbits).
daily). |
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ECOTOXICOLOGY d) for bobwhite quail 860, Japanese quail >1000, mallard ducks 700 ppm. Based on the results of acute laboratory trials, azamethiphos is classified as highly toxic to birds. However, sublethal doses have a repellent effect on birds, so the risk for birds is
significantly reduced. sheepshead minnow 2.22 mg/l. Based on the test with the most sensitive species, rainbow trout, azamethiphos is classified as highly toxic to fish. All other test species were less
sensitive to this compound. |
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ENVIRONMENTAL FATE chloropyridine represents the major metabolite, accounting for 27-48% of the dose, followed
by the corresponding sulfuric acid conjugate accounting for 3-20% of the dose. |