113163-68-1
3-methoxy-4-oxo-2-phenyl-4H-furo[2,3-h]chromene-8-carboxylic acid ethyl ester
→
109504-10-1
3-methoxy-4-oxo-2-phenyl-4H-furo[2,3-h]chromene-8-carboxylic acid
521-88-0
水黄皮素