,9-dimethyl-11-oxo-

11h-dibenzo(b,e)(1,4)dioxepin-6-carboxylicacid,4-formyl-3-hydroxy-8-methoxy-1

4-Formyl-3,8-dihydroxy-1,6,9-trimethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7-carboxylic acid

1,6,9-Trimethyl-3,8-dihydroxy-4-formyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7-carboxylic acid