638-07-3
4-氯乙酰乙酸乙酯
+
65802-56-4
4-氨基-6-羟基-2-巯基嘧啶一水物
→
72195-13-2
2a-hydroxy-2a,3-dihydro-2H,5H-1-thia-5,8,8b-triaza-acenaphthylene-4,7-dione
72195-12-1