7-acetoxy-4,6-dimethyl benzopyran-2(H)-one

4,6-dimethyl-7-hydroxy-8-acetylcoumarin

7-hydroxy-4,6-dimethylchromen-2-one

4-甲基间苯二酚

1,1'-(3,7,9-trihydroxy-8,9b-dimethyl-1-oxo-1,4,4a,9b-tetrahydrodibenzo[b,d]furan-2,6-diyl)bis(ethan-1-one)