label: 7,17-di(2-O-acetyl-3,6-dideoxy-xylo-hexopyranosyl)-7,8,17,18-tetrahydro-8,18-dioxo-2,7,13,17-tetramethyl-21H,2H-porphine
label_lc: 7,17-di(2-o-acetyl-3,6-dideoxy-xylo-hexopyranosyl)-7,8,17,18-tetrahydro-8,18-dioxo-2,7,13,17-tetramethyl-21h,2h-porphine