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Merck
CN

17799

Rhamnetin

analytical standard

Synonym(s):

β-Rhamnocitrin, 3,3′,4′,5-Tetrahydroxy 7-methoxyflavone, 7-Methoxyquercetin, 7-Methylquercetin, Quercetin 7-methyl ether

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About This Item

Empirical Formula (Hill Notation):
C16H12O7
CAS Number:
90-19-7
Molecular Weight:
316.26
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329751568
EC Number:
201-974-1
Beilstein/REAXYS Number:
47741
MDL number:
MFCD00016931

Key Documents

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InChI key

JGUZGNYPMHHYRK-UHFFFAOYSA-N

InChI

1S/C16H12O7/c1-22-8-5-11(19)13-12(6-8)23-16(15(21)14(13)20)7-2-3-9(17)10(18)4-7/h2-6,17-19,21H,1H3

SMILES string

COc1cc(O)c2C(=O)C(O)=C(Oc2c1)c3ccc(O)c(O)c3

grade

analytical standard

assay

≥99.0% (HPLC)

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

food and beverages

format

neat

storage temp.

2-8°C

Quality Level

100

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Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP1731
BCCN5581
BCCG6507
BCCC9882
BCBZ3141

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F Bucar et al.
Die Pharmazie, 53(12), 875-878 (1999-01-08)
From the methylene chloride extract of the leaves of Guiera senegalensis a novel naphthopyran, 5-methylflavasperone (5,8,10-trimethoxy-2-methyl-4 H-naphtho[1,2-b]pyran-4-one), as well as rhamnetin were isolated. Rhamnetin showed a strong inhibitory activity on 5-lipoxygenase from porcine leucocytes with an IC50 value of 0.7
Andreas Schieber et al.
Journal of agricultural and food chemistry, 51(17), 5006-5011 (2003-08-09)
Flavonol O- and xanthone C-glycosides were extracted from mango (Mangifera indica L. cv. "Tommy Atkins") peels and characterized by high-performance liquid chromatography-electrospray ionization mass spectrometry. Among the fourteen compounds analyzed, seven quercetin O-glycosides, one kaempferol O-glycoside, and four xanthone C-glycosides
Leena Pohjala et al.
Molecules (Basel, Switzerland), 17(9), 10774-10790 (2012-09-11)
Previous descriptions of quercetin, a widely studied flavonoid, as a frequently reported nonspecific screening hit due to aggregating behavior has raised questions about the reliability of in vitro bioactivity reports of phenolic compounds. Here a systematic study on 117 phenolic
Sunhee Lee et al.
Bioorganic & medicinal chemistry letters, 21(13), 3866-3870 (2011-06-10)
To produce rhamnetin using enzymatic engineering, poplar O-methyltransferase-7 and its mutants were prepared based on the rational enzyme design, and the production of rhamnetin was compared with the results obtained using the wild type enzyme. In addition, the potential of
Andrea Mattarei et al.
Molecules (Basel, Switzerland), 15(7), 4722-4736 (2010-07-27)
The regioselective synthesis of several quercetin (3,3',4',5,7-pentahydroxy flavone) tetraesters bearing a single free OH on 5-C was achieved in good yield by proper choice of reaction conditions using common esterification procedures. Tetracetylated quercetin with the free OH on 7-C was
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膳食抗氧化剂

抗氧化剂可保护生物系统免受含氧自由基和氧化还原过渡金属离子（如铁、铜和镉）引起的氧化损伤。

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