英文名称
(2S)-3-[2-[[3-[(2R)-2-carboxypropyl]-5-[(3-ethenylidene-5-hydroxy-4-methyl-1H-pyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methylidene]-5-[(3-ethenylidene-5-hydroxy-4-methyl-1H-pyrrol-2-ylidene)methylidene]-4-methylpyrrol-3-yl]-2-methylpropanoic acid