132898-96-5
2,3-dioxo-1H-indole-5-sulfonyl chloride
+
124-40-3
二甲胺
→
~76%
144405-95-8
N,N-dimethyl-2,3-dioxo-1H-indole-5-sulfonamide
80789-74-8
靛红-5-磺酸钠
91-56-5
吲哚-2,3-二酮