92204
二氢山奈酚
analytical standard
别名:
(2R,3R)-3,4′,5,7-四羟基黄烷酮, Katuranin, 香树素, （2R，3R）-3,5,7-三羟基-2-（4-羟基苯基）-2,3-二氢-4-H-色烯-4-酮, （±）-二氢山奈酚, （±）-香树醇
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关于此项目
经验公式（希尔记法）:
C15H12O6
化学文摘社编号:
分子量:
288.25
NACRES:
NA.24
PubChem Substance ID:
UNSPSC Code:
85151701
MDL number:
InChI
1S/C15H12O6/c16-8-3-1-7(2-4-8)15-14(20)13(19)12-10(18)5-9(17)6-11(12)21-15/h1-6,14-18,20H/t14-,15+/m0/s1
SMILES string
O[C@@H]1[C@H](Oc2cc(O)cc(O)c2C1=O)c3ccc(O)cc3
InChI key
PADQINQHPQKXNL-LSDHHAIUSA-N
grade
analytical standard
assay
≥95.0% (HPLC)
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
impurities
≤10.0% water, ≤5.0% residual solvents
application(s)
food and beverages
format
neat
Quality Level
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Application
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Packaging
无底玻璃瓶。内含物装在插入的融合锥内。
Other Notes
这种化合物常见于以下属的植物中：银杏、水飞蓟、百里香
Andrea G Prescott et al.
Phytochemistry, 60(6), 589-593 (2002-07-20)
cDNA corresponding to a flavonol synthase gene from Arabidopsis thaliana was cloned and expressed in Escherichia coli. The recombinant protein was purified to near-homogeneity and the catalytic properties of the enzyme were studied in vitro. Together with kaempferol and apigenin
Frank Wellmann et al.
European journal of biochemistry, 269(16), 4134-4142 (2002-08-16)
Flavonols are produced by the desaturation of flavanols catalyzed by flavonol synthase. The enzyme belongs to the class of intermolecular dioxygenases which depend on molecular oxygen and FeII/2-oxoglutarate for activity, and have been in focus of structural studies recently. Flavonol
Marta Marín et al.
Phytochemistry, 72(14-15), 1821-1825 (2011-07-19)
Three phenolic antioxidant and anti-inflammatory compounds: 7-methylaromadendrin, isoprenylhydroquinone glucoside, and 3.5-dicaffeoylquinic acid methyl ester, all isolated from Western Mediterranean Asteraceae species, have been studied for their inhibitory activity against protein carbonylation, a harmful post-translational modification of peptide chains associated with
Richard Lukacin et al.
Phytochemistry, 62(3), 287-292 (2003-03-07)
Flavonol synthase was classified as a 2-oxoglutarate-dependent dioxygenase converting natural (2R,3R)-dihydroflavonols, i.e. dihydrokaempferol, to the corresponding flavonols (kaempferol). Flavonol synthase from Citrus unshiu (Satsuma mandarin), expressed in Escherichia coli and purified to homogeneity, was shown to accept also (2S)-naringenin as
S Masuzaki et al.
TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 112(4), 607-617 (2006-01-18)
The extrachromosome 5A of shallot (Allium cepa L., genomes AA) has an important role in flavonoid biosynthesis in the scaly leaf of Allium fistulosum-shallot monosomic addition lines (FF+nA). This study deals with the production and biochemical characterisation of A. fistulosum-shallot
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