54107-99-2
dimethyl quinoxaline-2,3-dicarboxylate
→
54107-98-1
(2,4-dioxo-1H-benzo[g]pteridin-3-yl) benzenesulfonate
117844-70-9
sodium 2,3-quinoxalinedicarbohydroxamate
+
98-09-9
苯磺酰氯
85414-82-0
3-氨基喹喔啉-2-羧酸