1,3-diacetoxy-8,9-diisopropyloxy-benzo[4,5]furo[3,2-c]chromen-6-one

4,5,7-三羟基香豆素

邻苯二酚

4,5,7-trihydroxy-3-(2',4',5'-trihydroxyphenyl)coumarin

间苯三酚