3-Hydroxy-4-(4-hydroxyphenyl)-6-[(3,4-dihydroxyphenyl)methylene]-2H-pyran-2,5(6H)-dione

3-Hydroxy-4-(4-hydroxyphenyl)-6-[(3,4-dihydroxyphenyl)methylene]-2H-pyran-2,5(6H)-dione · CAS 41744-33-6