Showing structure for (2s)-2-carboxy-1-{2-[(2r)-2,6-dicarboxy-2,3-dihydro-1h-pyridin-4-ylidene]ethylidene}-6-hydroxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-[(sulfonatooxy)methyl]oxan-2-yl]oxy}-2,3-dihydro-1h-1λ⁵-indol-1-ylium