6-Amino-1,3-Dihydro-2H-Purin-2-One, 6-amino-3,7-dihydro-purin-2-one, 6-amino-9H-purin-2-ol, 2H-Purin-2-one, 6-amino-1,3-dihydro-, 6-amino-1,7-dihydropurin-2-one, 6-Amino-3,7-dihydro-2H-purin-2-one, 6-amino-7H-purin-2-ol, 2-oxoadenine, 2-hydroxyadenine, 2-Hydroxy-6-aminopurine, Isoguanine