2-AMINO-4,6-DIHYDROXYPTERIDENE, 2-aminopteridine-4(3H),6(5H)-dione, 2-Amino-3,5-dihydro-pteridin-4,6-dion, 4,6-Pteridinedione, 2-amino-1,5-dihydro-, 2-amino-3,5-dihydro-pteridine-4,6-dione, 2-AMINO-1,5-DIHYDROPTERIDINE-4,6-DIONE, 2-azanyl-1,5-dihydropteridine-4,6-dione, 2-Amino-4,6(1H,5H)-pteridinedione, 2-amino-1,5-dihydropteridine-4,6-quinone, 2-amino-1,5-dihydro-4,6-pteridinedione, xanthopterine, 4,6-Pteridinedione,2-amino-1,5-dihydro-(9CI), 2-Amino-4-oxo-6-hydroxy-3,4-dihydropteridine