2650-14-8
3-溴-4-羟基-2H-1-苯并吡喃-2-酮
→
~76%
69538-20-1
4-hydroxy-3-sulfanylchromen-2-one
1076-38-6
4-羟基香豆素
4438-85-1
chromene-2,4-dione
408340-80-7
3-carbamimidoylmercapto-4-hydroxy-coumarin