coumaphos

structural formula

• numbering system
• physical property data
• toxicological data
• ecological data
• molecular structure data
• computing chemical data
• more
  • properties and stability
  • storage method
  • synthesis method
  • purpose

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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