title: ASSIGNMENT OF THE N-METHYL HYDROGEN NMR PEAKS OF CAFFEINE.
mesh_terms: D002110:Caffeine; D002626:Chemistry, Pharmaceutical; D006859:Hydrogen; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D010604:Pharmacy; D012106:Research; D013805:Theobromine; D013806:Theophylline
chemical_list: D002110:Caffeine; D006859:Hydrogen; D013806:Theophylline; D013805:Theobromine
keywords: CAFFEINE; CHEMISTRY, PHARMACEUTICAL; EXPERIMENTAL LAB STUDY; THEOBROMINE; THEOPHYLLINE