2,4-Diamino-6-hydroxypyrimidine2,4-Diaminopyrimidin-6-ol2,6-diaminopyrimidin-4-ol2,6-DIAMINO-4-HYDROXYPYRIMIDINE2,6-氨基-4-嘧啶醇2,6-Diamino-4-pyrimidinone2,6-Diamino-4-pyrimidinol2,6-Diamino-4-pyrimidinone2,4-二氨基-6-羟基嘧啶2,4-Diamino-6-hydroxypyrimidine2,4-Diamino-6-hydroxypyrimidine2,6-二氨基-4-嘧啶酮2,4-二氨基-6-羟基嘧啶