3-Methylxanthine1076-22-8100 % similar Theobromine83-67-049 % similar Theophylline58-55-949 % similar 3,7-Dihydro-3-methyl-7-propyl-1H-purine-2,6-dione55242-64-346 % similar 1,3-Dimethylxanthine monohydrate5967-84-045 % similar 1-Methylxanthine6136-37-445 % similar Aminophylline317-34-043 % similar 6-Amino-1-methyl-5-nitroso-2,4(1H,3H)-pyrimidinedione6972-78-739 % similar Xanthine69-89-639 % similar Ibmx28822-58-438 % similar 2-Thioxanthine2487-40-337 % similar 6-Amino-1-methyluracil2434-53-936 % similar Guanine73-40-536 % similar Englate8000-10-036 % similar N2-Acetylguanine19962-37-935 % similar 8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1H-purine-2,6-dione666816-98-435 % similar Hypoxanthine68-94-034 % similar Guanine hydrochloride635-39-234 % similar Guanine sulfate10333-92-333 % similar 1-Methyluracil615-77-033 % similar