英文名称
1-[(2E)-2-[(2R)-2,6-dicarboxy-2,3-dihydro-1H-pyridin-4-ylidene]ethylidene]-6-[(2R,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-2,3-dihydroindol-1-ium-2-carboxylate