97-41-6
Ethyl chrysanthemumate, mixture of cis andtrans
CAS: 97-41-6
Molecular Formula: C12H20O2
97-41-6 - Names and Identifiers
97-41-6 - Physico-chemical Properties
| Molecular Formula | C12H20O2 |
| Molar Mass | 196.29 |
| Density | 0.906g/mLat 25°C(lit.) |
| Boling Point | 112°C10mm Hg(lit.) |
| Flash Point | 184°F |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.0372mmHg at 25°C |
| Appearance | Liquid |
| Color | Yellow |
| BRN | 2045740 |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.461(lit.) |
| MDL | MFCD00001304 |
| Physical and Chemical Properties | (+) ethyl cis-trans chrysanthemum acid is a colorless or light yellow oily liquid, B. p.112 ℃/1.33 kpa,n20D1.460, relative density 0.906,f.p.184 ℉(84 ℃). Insoluble in water, soluble in ethanol, methanol, acetone, benzene, toluene and other organic solvents. |
| Use | It is mainly used for the key intermediates of insecticides such as permethrin, cypermethrin, phenylethrin, and propermethrin. |
97-41-6 - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 2 |
| RTECS | GZ1727000 |
| TSCA | Yes |
| HS Code | 29162090 |
97-41-6 - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | The ethyl ester can be used as a pharmaceutical synthesis intermediate, such as the preparation of 6, 6-dimethyl-3-oxabicyclo [3.1.0] hexane -2, 4-dione, 6, 6-dimethyl-3-oxabicyclo [3.1.0] hexane -2, 4-dione is an important intermediate for the production of novel drugs targeting the hepatitis C Virus replication site. |
| Use | ethyl pyrethrate is an important intermediate of pyrethroid, A variety of hygienic pyrethroids can be prepared. hygienic intermediates can be used as raw materials for organic synthesis, pharmaceutical intermediates is an important intermediate for the preparation of permethrin and other pesticides mainly used in the preparation of permethrin, key intermediates of insecticides, such as Phenothrin and prynthrin, |
| production method | diazoacetate method 2, 5-dimethyl-2, 4-hexadiene was added to the reaction flask, with the amount of Diene 59/6 copper powder as catalyst, and then add a little hydroquinone as antioxidant, under nitrogen heating to 120 ℃, under rapid stirring, drop heavier methyl acetate solution, when dropping, N2 is released, and the reaction rate is controlled. After dropping, stirring is continued for 0.5h, cooling, and the excess Diene is removed by distillation, the recovered Diene can be recycled., Ethyl pyrethate was obtained by replacing methyl diazoacetate with ethyl diazoacetate. |
Last Update：2024-04-09 20:49:11
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