title: Determination of nicotinic acid and nicotinic acid derivatives with cyanogen bromide and 1-phenyl-3-methyl-5-pyrazolone.
mesh_terms: D003124:Colorimetry; D003488:Cyanogen Bromide; D004304:Dosage Forms; D007202:Indicators and Reagents; D008722:Methods; D009536:Niacinamide / Q000032:analysis; D009539:Nicotinic Acids / Q000032:analysis*; D011720:Pyrazoles
chemical_list: D004304:Dosage Forms; D007202:Indicators and Reagents; D009539:Nicotinic Acids; D011720:Pyrazoles; D009536:Niacinamide; D003488:Cyanogen Bromide