2024-05-09by admin0

Valfenfos structural formula

Structural formula

Business number 015N
Molecular formula C10H16NO5PS2
Molecular weight 325.34







O-{4-[(Dimethylamino)sulfonyl]phenyl}-O,O-dimethyl phosphorothioate,

Organophosphorus pesticides

Numbering system

CAS number:52-85-7

MDL number:MFCD00055307

EINECS number:200-154-0

RTECS number:TF7650000

BRN number:2224254

PubChem ID:None

Physical property data

1. Characteristics: Colorless crystal

2. Density ( g/mL,25/4℃): Undetermined

3. Relative steam Density (g/mL,AIR=1): Undetermined

4. Melting point ( ºC):55

5. Boiling point ( ºC,Normal pressure): Undetermined

6. Boiling point ( ºC, 13.33kpa):

7. Refractive index : Undetermined

8. Flashpoint (ºC): Undetermined

9. Specific optical activity Degree (º,): Undetermined

10. Spontaneous ignition point or ignition temperature (ºC): Undetermined

11. Vapor Pressure (kPa,25ºC): Undetermined

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

13. Burning heat (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical Pressure (KPa): Undetermined

16. Oil and water ( Octanol/Log value of water) partition coefficient: Undetermined

17. Explosion limit (%,V/V): Undetermined

18. Lower explosion limit (%,V/V): Undetermined

19. Solubility :Solubility in water is100mg/L. Soluble in xylene, chloroform, acetone and other solvents.

Toxicological data

1, acute toxicity: rat oral LD50: 28mg/kg; Rat, skin contact LD50: 400mg/kg; Small Mouse oral LD50: 9500ug/kg; Mouse abdominal cavity LD50: 11600ug/kg;
Rabbit, skin contact LD50: 1460 mg/kg; wild bird oral LD50180ug/kg
2, other multi-dose toxicity: rat oral TDLo: 13500ug/kg/90D- C

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 76.92

2. Molar volume (m 3/mol):240.2

3. isotonic ratio(90.2K)641.9

4. Surface Tension(dyne/cm)50.9

5. Polarizability(10-24cm3)30.49

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 7

4. Number of rotatable chemical bonds: 6

5. Number of tautomers: none

6. Topological molecule polar surface area 106

7. Number of heavy atoms: 19

8. Surface charge: 0

9. Complexity: 418

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 yet

Storage method

None yet

Synthesis method

Dimethoxyphosphorothioate chloride can be reacted with p-dimethylaminosulfonylphenol Preparation.


Used to prevent and control internal and external parasites in livestock, such as body lice, fly larvae, and subcutaneous fly larvae.�etc. Preparations include powder and pouring agent.


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