title: An infrared study of the interaction of caffeine and theophylline with 9-ethyladenine in chloroform solution.
mesh_terms: D000225:Adenine; D002110:Caffeine; D055598:Chemical Phenomena; D002621:Chemistry; D002725:Chloroform; D004260:DNA Repair; D004347:Drug Interactions; D007259:Infrared Rays; D012996:Solutions; D013057:Spectrum Analysis; D013806:Theophylline
chemical_list: D012996:Solutions; D002110:Caffeine; D002725:Chloroform; D013806:Theophylline; D000225:Adenine