Synonyms: 1H-Purinium,2-amino-6,9-dihydro-7-methyl-6-oxo-9-b-D-ribofuranosyl-, inner salt;2-Amino-1,6-dihydro-7-methyl-6-oxo-9-b-D-ribofuranosylpurinium hydroxide, inner salt (7CI);Purinium, 2-amino-6-hydroxy-7-methyl-9-b-D-ribofuranosyl-, hydroxide, inner salt (8CI); NSC54248; NSC 99363