A citrus flavonoid compound, reported as the predominant flavonoid in lemons and oranges. Chemically, it is hesperetin-7-rutinoside, namely (S)-7-[‍[6-0-(6-deoxy-alpha-L-mannopyranosyl)-beta-D-glucopyranosyl] oxy]-2,3-dihydro-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-4H-1-benzopyran-4-one.