2686-99-9
3,4,5-TRIMETHACARB
CAS: 2686-99-9
Molecular Formula: C11H15NO2
2686-99-9 - Names and Identifiers
2686-99-9 - Physico-chemical Properties
| Molecular Formula | C11H15NO2 |
| Molar Mass | 193.24 |
| Density | 1.0945 (rough estimate) |
| Melting Point | 109 °C |
| Boling Point | 329.46°C (rough estimate) |
| pKa | 12.39±0.46(Predicted) |
| Storage Condition | 0-6°C |
| Refractive Index | 1.5080 (estimate) |
| Physical and Chemical Properties | Chemical industrial crude oil (content 88% ~ 91%) is a light yellow semi-solid oily substance with a relative density of about 1.0885. Crystallization occurs when the temperature is lower than 10 ℃, and melts into a permeable oil at 30~50 ℃. Insoluble in water, slightly soluble in gasoline, petroleum ether, soluble in methanol, ethanol, acetone, benzene, toluene and other organic solvents. In case of alkali decomposition. |
| Use | Use 1, with killing, stomach poison, fumigation effect. It has special effects on the leaf hopper and the planthopper, and the knock-down speed is fast. After the application, most of the pests fall into the water, but the residual period is only 2~3 days. It is effective against lepidopteran and homopteran pests. With 2% powder 225~300kg/100m2 powder or with 50% emulsifiable concentrate spray 1000 times, the efficacy of rice planthopper, leaf hopper in more than 90%. In addition, it can also be used for the control of Cotton leaf hopper, Cotton Bridge worm, cotton bollworm, Cotton aphids, sugarcane thrips, soybean pod, etc. 2, for the prevention and control of rice flying insects, leaf hopper and other pests |
2686-99-9 - Nature
| EPA chemical information | 3,4,5-Trimethylphenyl methylcarbamate (2686-99-9) |
Last Update：2024-04-10 22:29:15
2686-99-9 - Production method
Chloroformate method (also known as cold method) is mainly used for production in China. It is prepared by esterification and amination of mixed xylenol.
The main points of operation are: the refining of mixed xylenol can be evaporated under reduced pressure in the presence of sulfuric acid; The preparation of phosgene toluene solution can be prepared by adding 300kg of toluene and 170kg of phosgene to make the relative density of phosgene toluene solution reach 1.040~1.045; Esterification is to put 140kg of mixed cresol into the prepared phosgene toluene solution at one time, cool to below -10, the end-point pH value is 8~9, and then a series of post-treatment intermediate toluene solution; The amination process is to cool the intermediate toluene liquid to about 0 ℃, start dropping 40% monomethylamine, add NaOH at the same time after 10min, add about 95kg of monomethylamine, add 140kg of sodium hydroxide (20%), and control pH = 11 at the end point of the reaction. After a series of post-processing, the toluene solution is obtained, and the toluene is removed under reduced pressure to obtain the crude oil.
Last Update：2024-04-10 22:29:15
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Product Name: Methiocarb Impurity 9 Visit Supplier Webpage Request for quotationCAS: 2686-99-9
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Product Name: 3,4,5-Trimethylphenyl Methyl Carbamate Visit Supplier Webpage Request for quotation
CAS: 2686-99-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 2686-99-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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