phenothiocarb
FENOTHIOCARB
CAS: 62850-32-2
Molecular Formula: C13H19NO2S
phenothiocarb - Names and Identifiers
phenothiocarb - Physico-chemical Properties
| Molecular Formula | C13H19NO2S |
| Molar Mass | 253.36 |
| Density | 1.1414 (rough estimate) |
| Melting Point | 40.5℃ |
| Boling Point | 155 °C |
| Water Solubility | 30 mg l-1 (20 °C) |
| Vapor Presure | 1.6 x l0-5 Pa (23 °C) |
| Appearance | morphology neat |
| pKa | -1.21±0.70(Predicted) |
| Storage Condition | 0-6°C |
| Refractive Index | 1.6800 (estimate) |
| Physical and Chemical Properties | The pure chemical properties are white crystals. M. p.40 ~ 41 ℃, vapor pressure 0.166 × 10-3Pa (20 ℃), B. p.155 ℃/2.67Pa, 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. Store at 40 ℃ for 1 month without decomposition. |
| Use | Use of carbamate acaricides, strong activity on eggs, larvae, nymphs, egg killing activity is particularly good. The activity of female mites is not high, but it has the function of significantly reducing the reproduction of female mites and reducing the hatching of eggs at low concentrations. The concentration of 230~500mg/L on citrus fruits can prevent and control the eggs and larvae of the whole claw mites. This product should be used in rotation with other acaricides, and should not be mixed with lime-sulfur mixture. |
phenothiocarb - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R50 - Very Toxic to aquatic organisms |
| Safety Description | 61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| RTECS | FD3825000 |
| HS Code | 29309090 |
phenothiocarb - Upstream Downstream Industry
| Raw Materials | Tetrahydrofuran Sodium chloride Hydrogen Dimethyl sulfide Tetrabutylammonium bromide Sodium formate Furan CARBONYL SULFIDE (-)-MENTHYL CHLOROFORMATE 1,4-Dichlorobutane 4-Phenoxybutyl chloride |
phenothiocarb - Nature
| BRN | 2125738 |
Last Update：2024-04-10 22:29:15
phenothiocarb - Uses and synthesis methods
Toxicity
the acute oral LD50 of male rats is 1150mg/kg, while that of females is 1200mg/kg. The acute oral LD50 of male mice is 7000 mg/kg, while that of female is 4875 mg/kg. Acute percutaneous LD50 of mice> 8000 mg/kg; LD50 injected subcutaneously in rats is 763~803 mg/kg, and that in mice is 3400~3510 mg/kg. Acute inhalation of LC50 in rats is 1.79mg/L. Male rats were fed a non-effective dose of 1.86 mg/kg per day for 2 years. Male is 1.94 mg/kg per day. The acute oral LD50 of wild ducks is> 2000 mg/kg, the LC50 of carp is 7.9mg/L (48h), the oral LD50 of bees is 0.047mg/, and the LC50 of silkworm is> 500mg/L.
production method
It is obtained by the reaction of 4-chlorobutylphenyl ether and N,N-dimethyl thiocarbamate. Preparation of 1.1, 4-dichlorobutane Tetrahydrofuran (0.56mol) and zinc chloride (1.12mol) are put into a reaction bottle, 2.2mol of concentrated hydrochloric acid (36%) is dropped at 50 ℃ under stirring, then the temperature is raised to 90-105 ℃ for 1.5h, and hydrogen chloride gas is introduced into the reaction bottle from time to time during the reaction process to keep the reaction liquid acidic all the time. Cooling, standing, stratification, the upper liquid is washed with saturated salt water, dried with magnesium sulfate, distilled under reduced pressure, and the fraction at 78-80 ℃(5.32kPa) is collected to obtain the refractive index (nD20)1.4538. Preparation of 2.4-Chlorobutylphenyl Ether 0.14mol phenol and 0.43mol,1,4-dichlorobutane were stirred and heated to 100 ℃. 0.21mol of 48% sodium hydroxide aqueous solution was dropped within 0.5h, and the solution was kept at 100 ℃ for 3h. Cooling and standing, stratification, washing and drying of the upper liquid, the excess of 1, 4-dichlorobutane is recovered under reduced pressure, and then distillation is continued under reduced pressure, and 90-92 ℃(1.33 × 10-3kPa) fraction is collected to obtain. Refractive index (nD25) 1.5176. 3. Preparation of Sodium N,N-Dimethylthiocarbamate Solution 0.25mol of sodium hydroxide was dissolved in 31g of water, cooled to 5 ℃, 0.25mol of 30% dimethylamine aqueous solution was added, and carbon oxysulfide (CDS) was introduced at 0-5 ℃ to obtain a sodium N,N-dimethylthiocarbamate solution with a concentration of 34%. 4. Preparation of phenylthiocarb 0.05mol 4-chlorobenzyl phenyl ether and 0.2g tetrabutyl ammonium bromide are stirred and heated to 60 ℃, 0.06mol 34% N,N-dimethylthiocarbamate sodium solution is added, reacted at 60 ℃ for 4 hours, cooled, 40ml benzene is added for extraction, benzene layer is washed and dried, benzene is distilled out, and 140 ℃(0.33 × 10-3kPa) fraction is collected.
Last Update：2024-04-10 22:29:15
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Multiple Specifications
Product Name: Fenothiocarb Visit Supplier Webpage Request for quotationCAS: 62850-32-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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Raw Materials for phenothiocarb