116616-67-2
+
113-00-8
胍
→
19375-92-9
7-methoxy-6-phenylpteridine-2,4-diamine
50627-20-8
4-hydroxy-3-imino-6-phenylpyrazine-2-carbonitrile
5098-14-6
对苯二磺酸氨基丙二酰丁氰