title: Biological probes. 3. Methods for carbon-4 and carbon-5 labeling in nicotinamide.
mesh_terms: D002247:Carbon Isotopes; D007553:Isotope Labeling / Q000379:methods*; D009243:NAD; D009536:Niacinamide
chemical_list: D002247:Carbon Isotopes; D009243:NAD; D009536:Niacinamide