Showing structure for [(2e)-4-[(1r,4r,7s,8s)-3-[(5e)-5-[carboxy(4-hydroxyphenyl)methylidene]-4-hydroxy-2-oxofuran-3-yl]-8-hydroxy-5,9-dioxotricyclo[5.4.0.0⁴,⁸]undeca-2,10-dien-11-yl]-3-hydroxy-5-oxofuran-2-ylidene](4-hydroxyphenyl)acetic acid