90180-97-5
5-amino-3H-[1,2,5]oxadiazolo[3,4-d]pyrimidin-7-one
→
~62%
1004-75-7
6-羟基-2,4,5-三氨基嘧啶
51093-31-3
2,4-二氨基-5-甲酰氨基-6-羟基嘧啶
62128-61-4
2,4-Diamino-6-hydroxy-5-isonitroso-pyrimidin