title: Tautomerism and ionisation processes in 6-methylthio-2-oxopurines.
mesh_terms: D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D011687:Purines; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D013440:Sulfides
chemical_list: D011687:Purines; D013440:Sulfides