CAS No.: | 63721-05-1 |
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Formula: | C8h14o2 |
EINECS: | 264-431-8 |
Type: | Pharmaceutical Intermediates |
Appearance: | Liquid |
Quality: | Industrial |
Samples: |
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Customization: |
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Pyrethroid pesticides are a new generation of insecticides developed on the basis of simulating the effective ingredients and chemical structure of natural pyrethroids. Due to its obvious efficacy, high insecticidal activity, wide application, low residual amount and low toxicity to mammals, it has become an ideal variety to replace highly toxic and highly residual organophosphorus pesticides advocated and promoted by the state. Methyl cardic acid, chemical name 3,3 dimethyl-4-pentenoate methyl ester, pure product is colorless transparent, with a special irritating odor liquid. Soluble in ethanol, ether and other organic solvents, insoluble in water, is a pungent aroma of organic compounds, is the synthesis of all kinds of permethrin the most important intermediate, including permethrin (DV permethrin), vithrin, permethrin dichlorothrin, cyanochemicalbook permethrin and a series of dichlorothrin insecticides; Cyfluthrin, deltamethrin, rich D-trans allethrin and so on more than a dozen major varieties. Methyl cardinate accounts for about 60% of the cost of the above types of pesticides, plays a key role in the synthesis of various types of permethrin pesticides, the early 1970s took the lead in the industrial production of British Zeneca company, domestic production in recent years, but most are generic category. At the same time, methyl cardic acid is also an important chemical raw material, can be used in general organic synthesis, because the production process of methyl cardic acid uses a large number of irritating chemical raw materials, intermediate products and final products are also irritating gas chemicals, so the production process should pay attention to its impact on human health and ecological environment.
Boiling point | 59°C 4,4mm |
density | 0.899 |
refractive index | 1.423 |
Fp | 107°F |
form | clear liquid |
color | Colorless to Almost colorless |
Methyl cardinate is an important intermediate of pyrethroid, which can produce dichlorothrin, and trifluorothrin is used to produce pyrethroid, and other pyrethroids. For example, a new pyrethroid-permethrin synthesis method uses methyl cardinate as raw material and ferrous chloride as initiator. In the closed Chemicalbook system,3, 3-dimethyl-4,6, 6-trichlorocaproate methyl ester was obtained after addition , and then 2, 2-dimethyl-3 - (ethylvinyl chloride) -cyclopropane carboxylic acid (metamethrin) was obtained after cyclic formation, dehalogenation, hydrolytic acidification, and reflux of sodium metamethrin with quaternary ammonium salt.
Hebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. Main products are cas: 6080-56-4, 2-phenylacetamide (cas103-81-1), After many years of efforts, we have established stable and friendly business relations with dozens of European and American pharmaceutical companies, multinational chemical companies and importers.
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