| Identification | Back Directory |  [Name]
  TAMARIXETIN |  [CAS]
  603-61-2 |  [Synonyms]
  Aids098167 amarixetin Aids-098167 Chiosmethin TAMARIXETIN tamaraxetin TAMARIEXETIN 4’-methylquercetin 4’-methoxyquercetin 4’-o-methylquercetin TAMARIXETIN WITH HPLC QUERCETIN-4'-METHYL ETHER QUERCETIN-4''-METHYL ETHER hplc 4'-METHOXY-3,5,7,3'-TETRAHYDROFLAVONE 3,3',5,7 TETRAHYDROXY-4'-METHOXYFLAVONE 4’-methoxy-3,3’,5,7-tetrahydroxy-flavon 3,3’,5,7-tetrahydroxy-4’-methoxy-flavon 4'-METHOXY-3,3',5,7-TETRAHYDROXYFLAVONE 3,5,7-trihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-one 3,5,7-trihydroxy-2-(3-hydroxy-4-methoxy-phenyl)chroman-4-one 3,5,7-trihydroxy-2-(3-hydroxy-4-methoxyphenyl)-4-benzopyrone 3,5,7-trihydroxy-2-(3-hydroxy-4-methoxyphenyl)-4h-1-benzopyran-4-on 3,5,7-Trihydroxy-2-(3-hydroxy-4-methoxyphenyl)-4H-1-benzopyran-4-one 4H-1-Benzopyran-4-one, 3,5,7-trihydroxy-2-(3-hydroxy-4-methoxyphenyl)- |  [EINECS(EC#)]
  210-050-7 |  [Molecular Formula]
  C16H12O7 |  [MDL Number]
  MFCD00017308 |  [MOL File]
  603-61-2.mol |  [Molecular Weight]
  316.26 |  
 | Chemical Properties | Back Directory |  [Melting point ]
  265-268°C |  [Boiling point ]
  601.8±55.0 °C(Predicted) |  [density ]
  1.634±0.06 g/cm3(Predicted) |  [storage temp. ]
  Store at -20°C |  [solubility ]
  DMSO: Slightly Soluble; Methanol: Slightly Soluble |  [form ]
  A solid |  [pka]
  6.31±0.40(Predicted) |  [color ]
  Yellow to brown |  [LogP]
  2.420 (est) |  
 | Hazard Information | Back Directory |  [Description]
  4''-O-methyl Quercetin is a flavonoid isolated from C. ordata with anticancer and antiplasmodial activity. 4''-O-methyl Quercetin is a major metabolite of quercetin (Item No. 10005169) that inhibits the viability of HL-60, U937, MOLT-3, Raji, K562, MCF-7, SK-MEL-1, and A549 human tumor cell lines with IC50 values ranging from 5.5-24.1 μM.1 It induces G2-M arrest and inhibits tubulin polymerization in vitro in a dose-dependent manner. 4''-O-methyl Quercetin inhibits breast cancer resistance protein (BCRP/ABCG2; IC50 = 40 nM in a vesicular transport assay) with no cellular toxicity indicating potential for use in overcoming multidrug resistance in chemotherapy.2 4''-O-methyl Quercetin also reduces in vitro proliferation of chloroquine-resistant P. falciparum (IC50 = 4.8 μM) and suppresses infection in mice (65-81% suppression at 2.5-5 mg/kg dose).3 |  [Uses]
  A major metabolite of the flavanoid Quercetin (Q509500) with antioxidant properties. It helps to protect H9c2 cardiomyoblasts against H2O2-induced oxidative stress via the modulation of PI3K/Akt and ERK1/2 signaling pathways. |  [Definition]
  ChEBI: A monomethoxyflavone that is quercetin methylated at position O-4'. Isolated from Cyperus teneriffae. |  [General Description]
 
 This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG  |  [in vivo]
 
 Tamarixetin (0.2% feed management; 6 weeks) improves the myocardial hypertrophy model [2].  
Tamarixetin (intraperitoneal injection; 1 mg/kg; single dose) has better anti-inflammatory properties, which is related to the increase of the immune cell population secreting IL-10 in mouse models of bacterial septicemia[3]. | Animal Model: | Transverse aortic constriction (TAC) mouse model[2] |  | Dosage: | 0.2% |  | Administration: | Feed management; 6 weeks |  | Result: | Alleviated pressure?overload?induced cardiac hypertrophy in mice.  
Attenuated cardiac fibrosis and apoptosis in pressure?overloaded hearts.  
Suppressed oxidative stress.  
Negatively regulated NFAT nuclear translocation level.  
Was able to the down-regulate the activation of PI3K/AKT signaling pathway in the heart after pressure overload.
 |  
  |  [storage]
  Store at -20°C |  [References]
  [1] FABIO NICOLINI. Induction of G2/M phase arrest and apoptosis by the flavonoid tamarixetin on human leukemia cells.[J]. Molecular Carcinogenesis, 2014, 53 12: 939-950. DOI: 10.1002/mc.22055 [2] KEE W. TAN . Identification of novel dietary phytochemicals inhibiting the efflux transporter breast cancer resistance protein (BCRP/ABCG2)[J]. Food Chemistry, 2013, 138 4: Pages 2267-2274. DOI: 10.1016/j.foodchem.2012.12.021 [3] I C EZENYI. Antiplasmodial activity-aided isolation and identification of quercetin-4’-methyl ether in Chromolaena odorata leaf fraction with high activity against chloroquine-resistant Plasmodium falciparum.[J]. Parasitology Research, 2014, 113 12: 4415-4422. DOI: 10.1007/s00436-014-4119-y |  
  
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