Coumaphos
Structural formula
| Business number | 017U |
|---|---|
| Molecular formula | C14H16ClO5PS |
| Molecular weight | 362.77 |
| label |
O-(3-chloro-4-methylcoumarin-7-yl)-O,O-diethylphosphorothioate, coumaphos, Phosphorus, Kuma Fushi, Agridip, Baymix, Coumafos, Meldone, Coumaphoscumafos, O-(3-Chloro-4-methylcoumarin-7-yl)-O,O-diethyl phosphorothioate, Organophosphorus pesticides |
Numbering system
CAS number:56-72-4
MDL number:MFCD00041820
EINECS number:200-285-3
RTECS number:GN6300000
BRN number:327083
PubChem number:24868876
Physical property data
1. Characteristics: Colorless crystal. The industry is brown crystal
2. Density (g/mL,25 /4℃): 1.474
3. Relative vapor density (g/mL,AIR=1): Undetermined
4. Melting point ( ºC): 95℃
5. Boiling point ( ºC,Normal pressure): Undetermined
6. Boiling point ( ºC,5.2kPa): Undetermined
7. Refractive Index: Undetermined
8. Flashpoint (ºC): Undetermined
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Not OK
11. Vapor pressure (kPa,25ºC This product should be kept sealed.
Synthesis method
（1)200gethyl acetoacetate and270g SO2CI2, respectively dissolved in100mlbenzene, then in10℃, SO2CI2It is obtained by dropping a benzene solution into a benzene solution of ethyl acetoacetate. (2) resorcin88gandα-Ethyl acetoacetate chloride132gDrip640mlIn concentrated sulfuric acid, the temperature is 5Produced by reaction below ℃3-Chlorine-4-Methyl-7-Hydroxycoumarin. 44g 3-Chlorine-4- Methyl-7-Hydroxycoumarin,29gAnhydrous potassium carbonate is placed together500mlIn methyl ethyl ketone, add dropwise under reflux and stirring40g O,O-Diethylphosphorothioate chloride, reflux2h And get fly poison phosphorus.
Purpose
fly poison Phosphorus-based non-systemic insecticides are particularly effective against dipteran pests. They are also used to control external parasites and are effective in controlling skin flies.
mes New Roman’; mso-hansi-font-family: ‘Times New Roman’; mso-bidi-font-family: Arial”>In concentrated sulfuric acid, the temperature is 5Obtained by reaction below ℃3-chlorine-4-Methyl-7-Hydroxycoumarin. 44g 3-Chlorine-4- Methyl-7-Hydroxycoumarin,29gAnhydrous potassium carbonate is placed together500mlIn methyl ethyl ketone, add dropwise under reflux and stirring40g O,O-Diethylphosphorothioate chloride, reflux2h And get fly poison phosphorus.
Purpose
fly poison Phosphorus-based non-systemic insecticides are particularly effective against dipteran pests. They are also used to control external parasites and are effective in controlling skin flies.
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