Agricultural chemicals
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Hexaflumuron
Cas No. ：86479-06-3Pure product is white crystal. m.p. 202～205℃(197～199℃), relative density 1.68, vapor pressure 0.059×10-3Pa(25℃). solubility: methanol 11.3g/L, xylene 5.2g/L, also soluble in acetone, dichloromethane, insoluble in water. The partition coefficient is 48000. chemically stable.
It is characterized by high insecticidal activity, wide insecticidal spectrum, strong knockdown force and quick effect. It can prevent and control Coleoptera, Diptera, Lepidoptera and Homoptera pests in cotton and fruit trees, and also has ovicidal activity. It is especially effective against bollworms and other pests, but not effective against mites.
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Fipronil
Cas No. ：120068-37-3Pure product is white solid, m.p. 200.5 ～ 201℃ , relative density 1.48 ～ 1.63, vapor pressure 3.73×10-7Pa (2.8×10-7Pa) (20℃ ).
Solubility: acetone 54.6g/100mL, dichloromethane 2.23g/100mL, methanol 13.75g/100mL, hexane and toluene 0.3g/mL, water
1.9mg/L. Distribution coeffi cient (octanol/water) 4.0. stable under normal storage conditions, half-life in water 135d, photolytic half_x005f life in water 8h.
It is mainly used in rice, sugar cane, potatoes and other crops. In animal health care, it is mainly used to kill fleas, lice and other parasites on cats and dogs
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Fenvalerate
Cas No. ：51630-58-1Fenvalerate is a yellow oily liquid. b.p.300℃(4.9×103Pa,25℃), vapor pressure 3.703×10-5Pa, relative density 1.175(25℃), refractive index n21.5D1.5655. Soluble in methanol, acetone, ethylene glycol, chloroform, xylene and other organic solvents
Broad-spectrum, efficient and rapid pyrethroids. It is mainly used for touch killing and stomach toxicity, without internal absorption, ineffective against mites, effective against lepidoptera larvae, orthoptera, hemiptera, and diptera pests, and be careful not to use it near mulberry gardens, fish ponds, and bee farms. The resistant cotton aphid and cotton bollworm should be stopped
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Fenpropathrin
Cas No. ：39515-41-8
The pure product is white crystal (the original drug is yellowish-brown solid). Melting point 49~50 ℃, vapor pressure 0.73 Pa (20 ℃). Solubility (25 ℃) : water 0.041 mg/L; Cyclohexanone and xylene 1 000, methanol 337 g/L. Decompose easily in alkaline solution.
Stomach-killing insecticides, anti-mite agents; Control tea inchworm, cabbage, cabbage moth, cotton bollworm, red spider, cotton bollworm and so on
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Fenoxaprop-ethyl 98% TC
Cas No. :62850-32-2
Pure product is white cry stal. m.p. 40 ～ 41℃ , vapor pressure 0.166×10-3Pa(20℃ ), b.p. 155℃ /2.67Pa, easily soluble in acetone, methanol, ethanol, cyclohexanone, xylene and other organic solvents, insoluble in water. Stable to heat and acid, slightly unstable to light and alkali. 40℃ storage for 1 month without decomposition.
New acaricides that are eff ective against all developmental stages of mites, especially more eff ective against eggs.
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Fenitrothion
Cas No. :122-14-5
Pure product is slightly yellow oily liquid; b.p. 118℃ /6.666Pa, 140 ～ 145℃ /13.33Pa (with decomposition); 97℃ /5.333Pa, relative density 1.3327(25℃ ), refractive index n25D1.5528, viscosity 0.02Pa_x005f_x005f_x005f_x0002_s(30℃ ), volatility 0.82mg/m3(20℃ ), vapor pressure 7.999×10-4Pa(20℃ ).
Fenitrothion has good control effect on rice, soybean, cotton, fruit trees, vegetables and other crop pests, and is especially eff ective against rice stem borer.
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Emamectin benzoate
Cas No. :137512-74-4Light yellow to light yellow solid, melting point 146-150°C, soluble in chloroform (a little), methanol (a little), water soluble 320 mg l-1 (pH 5), 24 mg l-1 (pH 7),0.1 mg l-1 (pH 9)
This product has high efficiency, broad-spectrum, safety, long residual period, is an excellent insecticide, acaricide, for the prevention and control of Cotton Ling and other Lepidoptera pests, mites, Coleoptera and Homoptera pests have a very high activity, and it is not easy to make the pests produce resistance to drugs. It is safe for humans and animals, and can be mixed with most pesticides.
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Dimethoate
Cas No. :60-51-5
Pure product is white crystal, industrial product is light yellow solid or light yellow liquid with garlic odor. m.p. 52~52.5℃ , relative density 1.277(20℃ ). Refractive index n65D1.5334(65℃ ), volatility 0.107mg/m3. vapor pressure 1.13×10-3Pa(25℃ ).
It is a contact and internal insecticidal and acaricidal agent, mainly used to control pests of cotton, vegetables and other crops
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Dichlorvos
Cas No. ：62-73-7
Industrial products are colorless to light brown liquid, volatile, 1% solubility in water at room temperature, 2%-3% solubility in kerosene, soluble in organic solvents, easy to hydrolyze, faster decomposition in case of alkali.
Quick-acting broad-spectrum phosphoric acid ester insecticide and acaricide, with strong fumigating effect on pests and leaf mites, as well as gastric toxicity and poisoning effect. It has the characteristics of high efficiency, quick-acting, short duration and no residue. Toxic to birds, fish and bees.
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Diazinon
Cas No. ：333-41-5Pure product is colorless oily liquid, slightly fragrant. b.p.83 ～ 84℃ ,/26.66×10-3Pa125℃ /133.32Pa, vapor pressure 1.867×10-2Pa(20℃ ), refractive index n20D1.4981, relative density 1.116 ～ 1.118(20℃ ). Miscible with acetone, ethanol, xylene, soluble in petroleum ether, solubility in water 0.004% at room temperature, unstable above 50℃ , unstable to acid and alkali, stable to light. It is slowly hydrolyzed in water and dilute acid, and trace moisture in storage can prompt its decomposition and turn into highly toxic tetraethyl pyrophosphorothioate. Industrial product is light brown liquid.
It is a non-invasive insecticide and has good control eff ect on many pests such as Lepidoptera and Homoptera
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Deltamethrin
Cas No. ：52918-63-5The techinical drug is white powder, odorless, recrystallized with isopropyl alcohol as rhombohedral crystal system needle-like crystals.
Deltamethrin is a highly efficient pyrethroid insecticide, which is mainly used for the control of cotton aphid, cotton bollworm and other crop pests, and can effectively control pests on cotton, tobacco, fruit trees, vegetables and other crops.
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Cypermethrin
Cas No. ：52315-07-8The original drug is light yellow to brown viscous liquid or semi-solid. Refractive index n25D1.5650, vapor pressure 5.066×10-6Pa (70 ℃), 190×10-9Pa (extrapolated to 20 ℃), the relative density Fang about 1.2350 (25 ℃). The solubility of the original drug in water is 0.01～0.2mg/L(21℃). Stable to heat, not decomposed below 220℃, more stable in acidic medium, stable to light in field test, unstable in alkaline condition.
Medium toxicity insecticide, with poisoning effects of touch and stomach, no systemic. It has wide insecticidal spectrum, rapid efficacy, stable to light and heat, and has killing effect on eggs of some pests. It has good effect on pests resistant to organophosphorus, but has poor effect on mites and blind stinkbugs.