757-86-8
Methyl[(Dimethoxyphosphinothioyl)thio]acetate
CAS: 757-86-8
Molecular Formula: C5H11O4PS2
757-86-8 - Names and Identifiers
757-86-8 - Physico-chemical Properties
| Molecular Formula | C5H11O4PS2 |
| Molar Mass | 230.24 |
| Physical and Chemical Properties | Chemical properties The pure sulfur phosphate ester is a colorless transparent liquid, m.p.85 ℃/1.3Pa, B. p.125 ~ 132 ℃/53~67Pa, insoluble in water, petroleum ether, soluble in organic solvents such as alcohol, benzene, ketone, etc. Industrial products are light yellow transparent liquid with relative density of 1.29~1.30(20 ℃). |
| Use | Uses O,O dimethyl-S-(methoxycarbonylmethyl) dithiophosphate, short for thiophosphate, is an intermediate of The organophosphorus pesticide Dimethoate. |
757-86-8 - Upstream Downstream Industry
| Raw Materials | Dimethyl sulfide Methyl chloroacetate |
| Downstream Products | Dimethoate O,O-DIMETHYL-S-(METHOXY-CARBONYL) THIOPHOSPHATE |
757-86-8 - Nature
Open Data Verified Data
colorless liquid with malodorous odor. Density 1.29g/cm3. Boiling point of 65 degrees C (2kPa).
Last Update：2024-01-02 23:10:35
757-86-8 - Preparation Method
Open Data Verified Data
from chloroacetic acid methyl ester and sulfide ammonium salt (O,0 'dimethyl dithiophosphate ammonium) synthesis. The crude product obtained from the synthesis was distilled under reduced pressure to obtain a finished product.
Last Update：2022-01-01 10:38:12
757-86-8 - Use
Open Data Verified Data
pesticide intermediates. Mainly used for the preparation of dimethoate, malathion and other organophosphorus pesticides.
Last Update：2022-01-01 10:38:11
757-86-8 - Safety
Open Data Verified Data
This product is toxic. Has a stimulating effect on the skin. Production process should pay attention to prevent material leakage, avoid contact with the human body. Operators should wear protective equipment. Packaged in iron or plastic barrels. Store in a cool, ventilated, dry warehouse. Pay attention to fire prevention, and store and transport toxic substances according to regulations.
Last Update：2022-01-01 10:38:12
757-86-8 - Production method
The preparation method is to react methyl sulfide ammonium salt with methyl chloroacetate to obtain sulfur phosphate ester.
1100~1200kg of methyl sulfide ammonium salt aqueous solution (content about 38% ~ 42%) and a certain amount of methyl chloroacetate are put into a reaction kettle, stirred, pH = 6~7 is adjusted, then the temperature is raised to 35~38 ℃, the heating is stopped, the temperature is raised by itself, and the temperature is controlled at 55~58 ℃ for 2.5h. After the reaction, cool, add 200kg of water, stir for a moment, and pump the reaction liquid to the water separator to stand and delaminate. After the ester layer is filtered, it is allowed to stand for 30min in a water separator with 200kg of water added in advance, and the waste water is separated. After the ester layer is washed with water and standing, crude sulfur and phosphorus esters are obtained. Crude sulfur and phosphorus esters are desolated by a rising film evaporator, separated by gas and liquid, and cooled to obtain refined sulfur and phosphorus esters.
Last Update：2024-04-10 22:29:15
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Product Name: Methyl [(dimethoxyphosphinothioyl)thio]acetate Visit Supplier Webpage Request for quotation
CAS: 757-86-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 757-86-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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Raw Materials for 757-86-8
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