Fenuron

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:101-42-8

MDL number:MFCD00025662

EINECS number:202-941-4

RTECS number:YT1450000

BRN number:2208535

PubChem number:24868997

Physical property data

1. Properties: colorless crystalline solid.

2. Density (g/mL, 20℃): 1.13

3. Relative vapor density (g/mL, air=1): Undetermined

4. Melting point (ºC): 134-136

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

6. Boiling point (ºC, kpa): Undetermined

p>

7. Refractive index: Undetermined

8. Flash point (ºC): Undetermined

9. Specific rotation (º): Undetermined

10. Autoignition point or ignition temperature (ºC): Not determined

11. Vapor pressure (mmHg, ºC): Not determined

12. Saturated vapor pressure ( kPa, ºC): Undetermined

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

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) distribution coefficient: Undetermined

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

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

19. Solubility: Slightly soluble in water, easily soluble in ethanol, acetone, Halogenated hydrocarbons, poorly soluble in alkanes.

Toxicological data

1. Acute toxicity: Rat oral LD50: 6400mg/kg; Mouse oral LD50: 4700mg/kg; Rabbit oral LD50: 4700mg/kg; Guinea pig oral LD50: 3200mg/kg; 2. Other multiple dose toxicity: Oral TDLo in rats: 13886mg/kg/61W-C; Oral TDLo in guinea pigs: 19264mg/kg/43W-I; 3. Mutagenicity: DNA inhibition Oral test: mice, 500mg/kg;

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 48.87

2. Molar volume (cm³/mol): 146.2

3. Isotonic specific volume (90.2K ): 376.4

4. Surface tension (dyne/cm): 43.8

5. Dielectric constant:

6. Dipole moment (10^-24cm³):

7. Polarizability:19.37

Compute chemical data

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

2. Number of hydrogen bond donors: 1

3. Number of hydrogen bond acceptors: 1

4. Number of rotatable chemical bonds: 1

5. Number of tautomers: 2

6. Topological molecule polar surface area 32.3

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 151

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

It is derived from the reaction between phenyl isocyanate and dimethylamine or from the reaction between aniline and dimethylcarbamoyl chloride.

Purpose

Used to control annual monocotyledonous and dicotyledonous weeds in cotton, soybean, corn and wheat fields and shrubs in non-crops. It is used for selective weeding at small doses and for killing weeding at large doses. Low toxicity, non-toxic to fish, safe to use.