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Isorhamnetin

analytical standard

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Synonym(s):
3′-Methoxy-3,4′,5,7-tetrahydroxyflavone, 3′-Methylquercetin, 3,4′,5,7-Tetrahydroxy 3′-methoxyflavone, Isorhamnetol, Quercetin 3′-methyl ether
Empirical Formula (Hill Notation):
C16H12O7
CAS Number:
Molecular Weight:
316.26
Beilstein:
44723
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

Assay

≥99% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

food and beverages

format

neat

storage temp.

2-8°C

SMILES string

COc1cc(ccc1O)C2=C(O)C(=O)c3c(O)cc(O)cc3O2

InChI

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

InChI key

IZQSVPBOUDKVDZ-UHFFFAOYSA-N

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General description

Isorhamnetin belongs to the flavonoids class of compounds.

Application

Isorhamnetin may be used as an analytical reference standard for the determination of isorhamnetin in:
  • Rat plasma samples by ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) equipped with electrospray ionization (ESI) and multiple reaction monitoring (MRM) mode of detection.
  • Lotus (Nelumbo nucifera) leaves by macroporous resin chromatography combined with HPLC-ESI-MS/MS.
  • Powdered extracts and finished products samples of Ginkgo biloba by HPLC-MS.
  • Human plasma and urine by high-throughput micro solid-phase extraction (μ-SPE), followed by analysis using UHPLC in interface with quadrupole time-of-flight mass spectrometry (Q TOFMS).

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

Biochem/physiol Actions

Isorhamnetin inhibits adipogenesis by interfering with differentiation of adipose stem cells, by a mechanism involving stabilization of β-catenin and up-regulating the Wnt signaling pathway.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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T1503
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705578-5MG-PW

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An effective identification and quantification method for Ginkgo biloba flavonol glycosides with targeted evaluation of adulterated products.
Ma YC, et al.
Phytomedicine, 23(4), 377-387 (2016)
Chemical fingerprint and quantitative analysis of flavonoids for quality control of Sea buckthorn leaves by HPLC and UHPLC-ESI-QTOF-MS.
Dong R, et al.
Journal of functional foods, 37, 513-522 (2017)
Development and validation of a high-throughput micro solid-phase extraction method coupled with ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry for rapid identification and quantification of phenolic metabolites in human plasma and urine.
Feliciano RP, et al.
Journal of Chromatography A, 1464(4), 21-31 (2016)
Simultaneous Determination of Kaempferide, Kaempferol and Isorhamnetin in Rat Plasma by Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry and its Application to a Pharmacokinetic Study.
Jiang Z, et al.
Journal of the Brazilian Chemical Society, 29(3), 535-542 (2018)
Felipe Surco-Laos et al.
Food & function, 2(8), 445-456 (2011-07-22)
Quercetin is a major flavonoid in the human diet and the most commonly used in studies of biological activity. Most of the knowledge about its biological effects has originated from in vitro studies while in vivo data are scarce. Quercetin

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