英文名称
(4Z)-4-[2-[2-carboxy-5-[6-[(4-carboxy-3-hydroxy-3-methylbutanoyl)oxymethyl]-3-(6-carboxy-3,4,5-trihydroxyoxan-2-yl)oxy-4,5-dihydroxyoxan-2-yl]oxy-6-hydroxy-2,3-dihydroindol-1-ium-1-ylidene]ethylidene]-2,3-dihydro-1H-pyridine-2,6-dicarboxylic acid