Synonyms: 2-Propenoicacid, 3-(3,4-dihydroxyphenyl)-, 6''-ester with 2-[4-[[4-O-(6-deoxy-a-L-mannopyranosyl)-b-D-xylopyranosyl]oxy]-3,5-dihydroxyphenyl]-3-[(O-b-D-glucopyranosyl-(1®2)-O-b-D-glucopyranosyl-(1®2)-6-deoxy-a-L-mannopyranosyl)oxy]-5,7-dihydroxy-4H-1-benzopyran-4-one,(E)-; 4H-1-Benzopyran-4-one, 2-[4-[[4-O-(6-deoxy-a-L-mannopyranosyl)-b-D-xylopyranosyl]oxy]-3,5-dihydroxyphenyl]-3-[[O-b-D-glucopyranosyl-(1®2)-O-6-O-[3-(3,4-dihydroxyphenyl)-1-oxo-2-propenyl]-b-D-glucopyranosyl-(1®2)-6-deoxy-a-L-mannopyranosyl]oxy]-5,7-dihydroxy-,(E)-; Montbretin A