Showing structure for 4-{[(5s)-5-(2-carboxy-2-oxoethyl)-8-{[(2s,4r,5r,6s)-4,5-dihydroxy-6-methyloxan-2-yl]oxy}-1-hydroxy-3-methyl-7,12-dioxo-5h-6-azatetraphen-6-yl]methyl}benzoic acid