Factory pull Dexamethasone-17-acetate Hot Sell

• Post Date:

  Jul 02,2018

• Expiry Date:

  Dec 29,2018

• Detailed Description:

  Cas No. :83880-70-0 Quantity: 1Metric Tons
  Price:1 USD Kilograms
  Payment Method: Wertern Union, Money Gram, T/T , Bitcoin
  Basic Info:
  Name:Dexamethasone-17-acetate
  Apearance:white or off-white crystalline powder
  CAS:83880-70-0
  MF:C24H31FO6
  MW:434.5
  Shipment:EMS,DHL,TNT,UPS,Fedx
  Package:disguised
  Payment: Bank Transfer,Bitcoin,WU,MoneyGram
  CAS no. : 1177-87-3
  English name: Dexamethasone - 17 - acetate
  English synonyms: Dectan;Panasone;Dectancyl;The NSC 39471;Decadronal;Decadron - la;Fortecortin;Dexacortisyl;Dalalone D.P.;Dalalone L.A.
  Chinese name: dexamethasone acetate
  English synonyms: acetic acid fluorine beautiful pine;Methyl acetate fluorine olefin line;Dexamethasone acetate;Dexamethasone acetate;Dexamethasone acetate;Dexamethasone acetate tablets;Prednisone acetate dragon;Dexamethasone acetate;Fluorinated methyl prednisone acetate dragon;21 - dexamethasone acetate
  Molecular formula: C24H31FO6
  Molecular weight: 434.5 melting point: 238-240 ° C (lit.)
  The refractive index: 87 ° (C = 1, Dioxane)
  Storage conditions: 2-8 ° C chemical properties
  White or white crystalline powder, odourless, taste bitter.The goods easily dissolved in acetone, dissolved in methanol and ethanol, slightly soluble in ethanol or chloroform, slightly dissolve in ether, insoluble in water.Melting point of 215-227 ℃.
  use
  Betamethasone and dexamethasone sodium phosphate intermediates.Used for anti-inflammatory and anti-allergic, applicable to rheumatoid arthritis and other collagen diseases, etc.
  Production methods
  Available 16 alpha, 17 alpha epoxy pregnant steroid - 4 - ene - 3,11,20 - three ketone (namely 16 alpha, 17 alpha epoxy - 11 - keto progestin) through (3 -, 20 - keto) ketal (11 - ketone group), reduction, eliminate [9 (11) - a dehydrated to form double bond], (epoxy) with methyl bromide magnesium addition and hydrolysis (16 form 17 alpha hydroxy beta - methyl), hydrolysis (ethylene glycol) removal 17 alpha hydroxy - 16 beta - methyl glycosides pregnant - 4, 9 (11) - diene - 3, 20 - diketone, then the (4, 5 -) dehydrogenation (forming double bond), (21 -) iodide, (21 - iodine acetoxyl group) replacement, [9 (11) - a double bond and bromate] addition, [(11) - a 9] epoxidation, 9 (11) hydrogen addition made after the goods.
  Welcome inquiry and trying, here is Amy serving.If more details,emails pls.
  

• CAS Registry Number:

  83880-70-0

• Company:

  Zhuzhou Yuancheng Hezhong Technology Development Co., Ltd.     [ China ]        

• Contact:

  Amy

• Tel:

  0078-731-22290202

• Fax:

  0078-731-22290202

• Email:

  hnzz01@ycgmp.com