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Chemical Identification
Common Name
Phoxim
中文通用名
辛硫磷
IUPAC
O,O-diethyl α-cyanobenzylideneaminooxyphosphonothioate
or
(EZ)-2-(diethoxyphosphinothioyloxyimino)-2-phenylacetonitrile
CAS
4-ethoxy-7-phenyl-3,5-dioxa-6-aza-4-phosphaoct-6-ene-8-nitrile 4-sulfide or a-[[(diethoxyphosphinothioyl)oxy]imino]benzene-acetonitrile
CAS No.
14816-18-3
Molecular Formula
C12H15N2O3PS
Molecular Structure
Category
Activity
Insecticide
Premix
Acetamiprid+phoxim
Imidacloprid+phoxim
Permethrin+phoxim
Cypermethrin+phoxim
Lambda-cyhalothrin+endosulfan+phoxim
Lambda-cyhalothrin+methomyl+phoxim
Lambda-cyhalothrin+malathion+phoxim
Dichlorvos+fenvalerate+phoxim
Malathion+fenvalerate+phoxim
Methomyl+fenvalerate+phoxim
Fenvalerate+phoxim
Esfenvalerate+phoxim
Phoxim+deltamethrin
Fenpropathrin+methomyl+phoxim
Fenpropathrin+phoxim
Beta-cypermethrin+malathion+phoxim
Beta-cypermethrin+methomyl+phoxim
Beta-cypermethrin+isocarbophos+phoxim
Beta-cypermethrin+phoxim
Cyfluthrin+phoxim
Methomyl+phoxim
Parathion-methyl+phoxim
Profenofos+phoxim
Triadimefon+carbendazim+phoxim
Abamectin+phoxim
Phoxim Acetate+Moroxydine Hydrochloride
Propamocarb Hydrochloride+Phoxim Acetate
Phoxim Acetate+Tetramycin
Aerosol, bait, dustable powder, emulsifiable concentrate, granules, ULV liquid. 
Premix Parters: clopyralid; 2,4-D; 2,4-D dicamba; fluroxypyr; metsulfuron-methyl; triclopyr;
Physical Properties
Molecular weight:298.3; Physical form:Yellow liquid; ( tech., reddish-brown oil). Density:1.178 (20 °C); Melting point:6.1 °C; Vapour pressure:2.1 mPa (20 °C); Henry constant:4.18 × 10-1 Pa m3 mol-1 (calc.); Partition coefficient(n-octanol and water):logP = 3.38; Solubility:In water 1.5 mg/l (20 °C). In toluene, n-hexane, dichloromethane, isopropanol >200 g/l. Slightly soluble in aliphatic hydrocarbons, vegetable and mineral oils.; Stability:Relatively slowly hydrolysed; DT50 ( est.) 26.7 d ( pH 4), 7.2 d ( pH 7), 3.1 d ( pH 9) (22 °C). Gradually decomposed under u.v. irradiation.
Toxicology
Oral:Acute oral LD50 for rats >2000 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats >5000 ml/kg. Not irritating to eyes or skin (rabbits). Inhalation: LC50 (4 h) for rats >4.0 mg/l air (aerosol). Phytotoxicity:May exhibit some phytotoxicity to cotton.
Environmental Profile
Ecotoxicology: 
Bees:Toxic to bees by contact and respiratory action.Birds: LD50 for hens 40 mg/ kg.Daphnia: LC50 (48 h) 0.00081 mg/l (80% premix).Fish: LC50 (96 h) for rainbow trout 0.53, bluegill sunfish 0.22 mg/l. 

Environmental fate: 
Animals:Rapidly metabolised in the mouse to diethylphosphoric acid and desethyl phoxim. There is also unusually rapid metabolism of the oxon, and the nitrile group is also metabolised to phoxim carboxylic acid. Elimination is very quick; almost 97% is excreted wiSoil:In soil, photochemical isomerisation occurs to diethoxyphosphorylthioiminophenylacetonitrile. Tetraethyl diphosphate and tetraethyl phosphorodithioate are further metabolites. Degradation in soil is very rapid. For further details, see G. Draeger (PflPlant:In cotton, photochemical degradation and metabolism involve isomerisation to O,O-diethyl S-a-cyanobenzylideneaminothiophosphonoate and tetraethyl diphosphate.) WATER SOLUBILITY: 3.4 mg/l at 20° C
Transport Information
Signal Word:CAUTION; Hazard Class:II(Moderately hazardous)

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