3,3',4',5,7-Pentahydroxyflavone

• Post Date:

  Mar 13,2013

• Expiry Date:

  Sep 09,2013

• Detailed Description:

  Cas No. :117-39-5 3,3',4',5,7-Pentahydroxyflavone　
  EINECS:204-187-1　
  Molecular Formula:C15H10O7　
  CAS Registry Number:117-39-5　
  Molecular Weight:302.24　
  Density:1.799 g/cm3　
  Boiling Point:642.4oCat 760 mmHg　
  Melting Point:314-317℃Flash Point:248.1oC　
  Storage Temperature:Store at 0-5°C　
  Refractive index:1.767　
  Solubility:<0.1 g/100 mL at 21 oC in water　
  Biological Activity:Anti-tumor agent; induces apoptosis and inhibits synthesis of heat shock proteins. Inhibits many enzyme systems including tyrosine protein kinase,phospholipase A 2 ,phosphodiesterases,mitochondrial ATPase,PI 3-kinase and protein kinase C. Can also activate Ca 2+ and K + channels and behaves as an agonist at estrogen (GPR30) receptors.　
  Appearance:Yellow to green yellow crystalline powde　
  Stability:Stable under normal temperatures and pressures.　
  Usage:　
  Medication: quercetin & pentabenzyl ether deriv to decr capillary fragility prc: former use.　
  　
  　
  

• CAS Registry Number:

  117-39-5

• Synonyms:

  C.I. 75670;C.I. Natural Yellow 10;Quercetin;3,3,4,5,7-Pentahydroxyflavone (pract);2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one;3-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one;

• Molecular Formula:

  C₁₅H₁₀O₆

• Molecular Weight:

  286.2363

• Molecular Structure:

  

• Hazard Symbols:

   T:Toxic;
  

• Risk Codes:

  R25:Toxic if swallowed.;
  R40:Possible risks of irreversible effects.;
  

• Safety Description:

  S28:After contact with skin, wash immediately with plenty of ...;
  S45:In case of accident of if you feel unwell, seek medical advice immediately (show the label where possible).;
  

• Company:

  Wuhan Yuancheng Gongchuang Technology Co., Ltd.     [ China ]        

• Contact:

  Chris Lee

• Tel:

  86-027-88080632

• Fax:

  86-027-88048077

• Email:

  ycgc_int01@yccreate.com