[S-(R*,R*)]-4-[2-[2-Carboxy-5-(beta-D-glucopyranosyloxy)-2,3-dihydro-6-hydroxy-1H-indol-1-yl]vinyl]-2,3-dihydropyridine-2,6-dicarboxylic acid

Beetroot Red

Betacyanine

(2S)-4-{2-[(2S)-2-carboxy-5-(beta-D-glucopyranosyloxy)-6-hydroxy-2,3-dihydro-1H-indol-1-yl]ethenyl}-2,3-dihydropyridine-2,6-dicarboxylic acid

(1E)-2-carboxy-1-[2-(2,6-dicarboxy-2,3-dihydropyridin-4(1H)-ylidene)ethylidene]-6-hydroxy-2,3-dihydro-1H-indolium-5-yl hexopyranoside

(1E,2S)-1-{(2E)-2-[(2S)-2,6-dicarboxy-2,3-dihydropyridin-4(1H)-ylidene]ethylidene}-5-(beta-D-glucopyranosyloxy)-6-hydroxy-2,3-dihydro-1H-indolium-2-carboxylate

(2S)-4-{2-[(2S)-2-carboxy-5-(beta-D-glucopyranosyloxy)-6-hydroxy-2,3-dihydro-1H-indol-1-yl]ethenyl}-2,3-dihydropyridine-2,6-dicarboxylic acid

(1E)-2-carboxy-1-[2-(2,6-dicarboxy-2,3-dihydropyridin-4(1H)-ylidene)ethylidene]-6-hydroxy-2,3-dihydro-1H-indolium-5-yl hexopyranoside

(1E,2S)-1-{(2E)-2-[(2S)-2,6-dicarboxy-2,3-dihydropyridin-4(1H)-ylidene]ethylidene}-5-(beta-D-glucopyranosyloxy)-6-hydroxy