7790-94-5
氯磺酸
+
91-64-5
香豆素
→
10543-42-7
香豆素-6-磺酰氯
27279-86-3
2-羰基-2H-1-苯并吡喃-6-磺基酸
84015-70-3
N-benzyl-2-oxochromene-6-sulfonamide
84015-73-6
N-(2-methylphenyl)-2-oxochromene-6-sulfonamide