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Chemical Identification
Common Name
Difenzoquat
中文通用名
野燕枯
IUPAC
1,2-dimethyl-3,5-diphenylpyrazolium
CAS
1,2-dimethyl-3,5-diphenyl-1H-pyrazolium
CAS No.
49866-87-7
Molecular Formula
C17H17N2
Molecular Structure
Physical Properties
Molecular weight:249.3. Odorless, clear, very slightly yellow liquid. Melting point 150°-160°C; boiling point >100°C.
Toxicology
Tech (Rat): Oral LD50 270 mg/kg. (Rabbit): Dermal LD50 470 mg/kg. Slight eye, skin irritation. Avenge*: (Rat): Oral LD50 508 mg/kg (male); 557 mg/kg (female). (Rabbit): Dermal LD50 >2028 mg/kg. ADI:0.2 mg/ kg b.w. daily.
Environmental Profile
Miscible HAZARDS: Fish: LD50 696 mg/l (bluegill) (96 h); 694 mg/l (rainbow trout). Bird: Relatively nontoxic (duck/quail). Bee: Nontoxic (honeybee).
WATER SOLUBILITY: 76% at 25°C, 78% at 37°C, 85% at 56°C.
Transport Information
Signal Word:DANGER; Hazard Class:Ib (Highly hazardous)

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