Description | 5,7-Dihydroxy-2-(4-hydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-4-one, also known as naringenin-7-sulfate or 4',5,7-trihydroxyflavanone, belongs to the class of organic compounds known as flavanones. Flavanones are compounds containing a flavan-3-one moiety, with a structure characterized by a 2-phenyl-3,4-dihydro-2H-1-benzopyran bearing a ketone at the carbon C3. 5,7-Dihydroxy-2-(4-hydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-4-one is an extremely weak basic (essentially neutral) compound (based on its pKa). Outside of the human body, 5,7-dihydroxy-2-(4-hydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-4-one has been detected, but not quantified in, tea. This could make 5,7-dihydroxy-2-(4-hydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-4-one a potential biomarker for the consumption of these foods. (2R)-5,7-Dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydro-4H-chromen-4-one is found in Acer pictum, Achyrocline flaccida, Acritopappus confertus, Adenothamnus validus, Aeonium lindleyi, Afzelia bipindensis, Aglaia rubiginosa, Allagopappus viscosissimus, Alpinia zerumbet, Anastatica hierochuntica, Anethum graveolens, Antiphiona pinnatisecta, Artemisia argyi, Artemisia barrelieri, Artemisia campestris, Artemisia dracunculus, Aster koraiensis, Baccharis dracunculifolia, Baccharis retusa, Bahiopsis laciniata, Berchemia formosana, Berchemia racemosa, Betula maximowicziana, Betula pubescens, Brosimum acutifolium, Broussonetia papyrifera, Brucea javanica, Cadophora gregata, Camellia sinensis, Carapa guianensis, Carduus tenuiflorus, Cedrus deodara, Centaurea cyanus, Centaurea pallescens, Chrysanthemum morifolium, Chrysothamnus viscidiflorus, Cicer arietinum, Cistus laurifolius, Citrus aurantium, Citrus limon, Citrus medica, Citrus trifoliata, Combretum imberbe, Commiphora wightii, Coriaria intermedia, Corymbia maculata, Cota palaestina, Cotoneaster orbicularis, Couepia paraensis, Craspedolobium schochii, Crocus sativus, Crotalaria assamica, Cryptomeria japonica, Cycas circinalis, Dalbergia parviflora, Deinandra lobbii, Dendrobium densiflorum, Diplostephium cinereum, Dracocephalum tanguticum, Elaeodendron croceum, Entada phaseoloides, Equisetum arvense, Eriodictyon angustifolium, Euchresta japonica, Ficus nervosa, Ficus pumila, Flemingia philippinensis, Garcinia multiflora, Glycine max, Glycyrrhiza echinata, Glycyrrhiza glabra, Glycyrrhiza uralensis, Goyazianthus tetrastichus, Gynerium sagittatum, Helichrysum arenarium, Helichrysum armenium, Heliotropium chenopodiaceum, Heliotropium sclerocarpum, Heliotropium sinuatum, Heliotropium taltalense, Inula salsoloides, Inulanthera dregeana, Juniperus chinensis, Laguncularia racemosa, Lamyropsis cynaroides, Leiocarpa semicalva, Lespedeza cyrtobotrya, Limonium aureum, Limonium sinense, Lippia graveolens, Lippia origanoides, Lotus uliginosus, Lychnophora ericoides, Maackia amurensis, Maclura cochinchinensis, Maclura pomifera, Maclura tricuspidata, Mandevilla hirsuta, Matricaria chamomilla, Matthiola incana, Medicago truncatula, Micromeria graeca, Millettia brandisiana, Mimosa tenuiflora, Monopteryx inpae, Nymphaea guineensis, Origanum dictamnus, Ormosia henryi, Ormosia monosperma, Paulownia coreana, Paulownia tomentosa, Phlomis floccosa, Phyllanthus emblica, Picea jezoensis, Piper crassinervium, Pittocaulon praecox, Pittocaulon velatum, Plazia daphnoides, Podocarpus fasciculus, Populus balsamifera, Populus davidiana, Populus deltoides, Populus szechuanica, Populus tremula, Premna fulva, Prunus avium, Prunus campanulata, Prunus cerasus, Prunus cornuta, Prunus davidiana, Prunus domestica, Prunus mume, Prunus persica, Prunus serrulata, Prunus verecunda, Prunus yedoensis, Pyracantha coccinea, Retama raetam, Rhynchosia beddomei, Salix caprea, Salvia mexicana, Salvia officinalis, Salvia rosmarinus, Salvia xalapensis, Sarcophyte sanguinea, Satureja cuneifolia, Scalesia baurii, Senna obtusifolia, Sinningia cardinalis, Smilax bracteata, Smilax corbularia, Smilax excelsa, Solanum lycopersicum, Sorghum bicolor, Stachys aegyptiaca, Steiractinia sodiroi, Streptomyces halstedii, Swartzia polyphylla, Syzygium jambos, Taxus wallichiana, Teucrium chamaedrys, Thymus herba-barona, Thymus vulgaris, Urospermum dalechampii, Vachellia nilotica, Viburnum cotinifolium, Vigna angularis, Viscum coloratum, Vitis vinifera, Wyethia angustifolia, Xanthoceras sorbifolium, Xanthorrhoea glauca and Xerochrysum bracteatum. A trihydroxyflavanone that is flavanone substituted by hydroxy groups at positions 5, 6 and 4'. |
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