DIFENZOQUAT METHYLSULFATE Chemical Properties

Melting point:

146-148℃ (acetone )

storage temp. 

0-6°C

Merck 

13,3163

BRN 

4093655

EPA Substance Registry System

Difenzoquat methyl sulfate (43222-48-6)

Safety Information

Hazard Codes 

Xn,N

Risk Statements 

22-50/53

Safety Statements 

60-61

RIDADR 

2588

WGK Germany 

3

RTECS 

UQ9820000

HazardClass 

6.1(b)

PackingGroup 

III

Toxicity

LD50 (technical grade) orally in rats: 470 mg/kg; dermally in rabbits: 3540 mg/kg (Shafer)

DIFENZOQUAT METHYLSULFATE Usage And Synthesis

Chemical Properties

Pure product is white solid, hygroscopic. m.p. 155～157°C, vapor pressure 1.33×10-5Pa (20°C), relative density 1.13. Solubility in water is 76% (25°C), 78% (37°C), 85% (56°C); slightly soluble in methanol, ethanol; insoluble in petroleum hydrocarbons. Aqueous solution (pH 3-3.4) is stable to light and acidic conditions, unstable to alkali, no effect on storage at 120℃ for 169h. Industrial content >96%, m.p. 150～160℃.

Uses

Difenzoquat Methyl Sulfate could have agricultural uses. It could help reduce downward migration of pesticides in soil/turf to allow it to better target pests.

Uses

DIFENZOQUAT METHYLSULFATE is Herbicide; agricultural fungicide.

Uses

DIFENZOQUAT METHYLSULFATE is used to control wild oats in wheat, barley, ?ax, maize, rye grass, vetches and rye grass crops.

Safety Profile

Poison by ingestion. Moderatelytoxic by skin contact. When heatedto decomposition it emits very toxic fumes of NOx andSOx.

Environmental Fate

Soil. Though no products were reported, the half-life in soil is approximately 3 months (Hartley and Kidd, 1987).
Photolytic. Degrades photolytically to the volatile monomethyl pyrazole (Hartley and Kidd, 1987).
Chemical/Physical. May react with aluminum releasing hydrogen (Hartley and Kidd, 1987).

DIFENZOQUAT METHYLSULFATE(43222-48-6)Related Product Information

• Dimethyl sulfate
• Pyrazole
• SULFATE STANDARD
• DIFENZOQUAT METHYLSULFATE SOLUTION 100UG/ML IN H2O 1ML
• DIFENZOQUAT METHYLSULFATE SOLUTION 100UG/ML IN TOLUENE 1ML
• DIFENZOQUAT METHYLSULFATE
• Difenzoquat
• 3,5-DIPHENYLPYRAZOLE
• 3-METHYL-5-PHENYL-1H-PYRAZOLE
• 3-Phenyl-1H-pyrazole