Nicosulfuron - Jiangsu Fengshan Co., Ltd

Common Name	Nicosulfuron
Action	Herbicide
Class	Sulfonylurea
CAS number	111991-09-4
Structural Formula
Physical and Chemical Characteristics	M.f. : C₁₅H₁₈N₆O₆S
	Mol. Wt. : 410.4
	Form : Colourless crystals
	Chemical name : 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-N,N-dimethylnicotinamide
	M.p. : 169-172 °C
	V.p. : <8 × 10^-7 mPa (25 °C)
	Kow logP : -0.36 (pH 5), -1.8 (pH 7), -2 (pH 9)
	Henry : <1.48 × 10^-11 Pa m3 mol^-1 (25 °C)
	S.g./density: 0.313 (bulk)
	Solubility: In water 0.07 g/l. In acetone 18, ethanol 4.5, chloroform, dimethylformamide 64, acetonitrile 23, toluene 0.370, hexane <0.02, dichloromethane 160 (all in g/kg, 25 °C)
	Stability: Hydrolysis DT₅₀ 15 d (pH 5); stable at pH 7 and pH 9
	pKa : 4.6 (25 °C)
Specification	Nicosulfuron content, % ≥ 95.0 Water content, % ≤ 1.0 PH range : 4.0~7.0 Acetone insoluble, % ≤ 0.5