Chemical Identification
Common Name
Forchlorfenuron
中文通用名
氯吡脲
IUPAC
1-(2-chloro-4-pyridyl)-3-phenylurea
CAS
N-(2-chloro-4-pyridinyl)-N′-phenylurea
CAS No.
68157-60-8
Molecular Formula
C12H10ClN3O
Molecular Structure
Physical Properties
White to off-white crystalline powder. Melting point 165°-170°C. Vapor pressure 4.6 x 10-5 mPa (25°C, gas saturation). Stable to heat, light, water.
Toxicology
(Rat): Oral LD50 4918 mg/kg; Inhalation LC50 (4 h) no mortality in saturated atmosphere. (Rabbit): Dermal LD50 >2000 mg/kg
Environmental Profile
HAZARDS: Fish: LC50 (96 h) 9.2 mg/l (rainbow trout); LC50 (48 h) 8 mg/l (Daphnia). Bird: Oral LD50 >2250 mg/kg, LC50 (5 d) >5600 ppm (bobwhite quail) WATER SOLUBILITY: 39 mg/l at 21°C (pH 6.4)
Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

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