Phosphate

Structural formula of pyridin

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.p; 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): Undetermined


12. Saturation vapor pressure (kPa,60ºC): Undetermined


13. heat of combustion (KJ/mol): Undetermined


14. Critical temperature (ºC): Undetermined


15. Critical Pressure (KPa): Undetermined


16. Oil and water (octanol/Log value of partition coefficient for water: undetermined


17. Explosion limit (%,V/V): Not OK


18. Lower explosion limit (%,V/V): Not OK


19. Solubility:Slightly soluble in water




Toxicological data

None

Ecological data

None

Molecular structure data


1. Molar refractive index: 86.84


2. Molar volume (m3/mol):261.8


3. isotonic specific volume (90.2K):709.5


4. Surface Tension (dyne/cm):53.9


5. Polarizability10-24cm3): 34.42


Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 4.5

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 6

4. Number of rotatable chemical bonds: 6

5. Number of tautomers: none

6. Topological molecule polar surface area 86.1

7. Number of heavy atoms: 22

8. Surface charge: 0

9. Complexity: 500

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

None

Storage method

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 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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