英文名称
3-[5-[[3-(2-carboxyethyl)-5-[[3-(2-carboxyethyl)-5-[[3-(2-carboxyethyl)-5-(carboxymethyl)-4-(hydroxymethyl)-1H-pyrrol-2-yl]methyl]-4-(carboxymethyl)-1H-pyrrol-2-yl]methyl]-4-(carboxymethyl)-1H-pyrrol-2-yl]methyl]-4-(carboxymethyl)-1H-pyrrol-3-yl]propanoic acid