Astilbin Neoastilbin

• Post Date:

  Jun 20,2013

• Expiry Date:

  Jun 20,2014

• Detailed Description:

  Cas No. :29838-67-3 Quantity: 10Metric Tons
  Payment Method: Astilbin 80%, 90% by HPLC
  Astilbin
  
  IUPAC name: (2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy-2,3-dihydrochromen-4-one
  
  Other name: Isoastilbin, Neoastilbin, Neoisoastilbin, Taxifolin 3-O-rhamnoside, Taxifolin 3-rhamnoside
  
  Specification: Astilbin 80%, 90% by HPLC
  
  Astilbin is a flavanonol, a type of flavonoid. Astilbin is the (2R-trans)-isomer; neoisoastilbin is the (2S-cis)-isomer and isoastilbin is the (2R-cis)-isomer.
  
  Astilbin can be found in St John's wort (Hypericum perforatum, Clusiaceae, subfamily Hypericoideae, formerly often considered a full family Hypericaceae), in Dimorphandra mollis(Fava d'anta, Fabaceae), in the leaves of Harungana madagascariensis (Hypericaceae), in the rhizome of Astilbe thunbergii, in the root of Astilbe odontophylla(Saxifragaceae), in the rhizone of Smilax glabra(Chinaroot, Smilacaceae) and in the bark of Hymenaea martiana.It can be isolated from Kohki tea processed from Engelhardtia chrysolepis (huang-qui).
  
  Uses
  Astilbin can act as an insecticide against Anticarsia gemmatalis and Spodoptera frugiperda. It shows in vitro antibacterial activity and activity on burn wound healing. Astilbin is used in traditional Chinese medicine.
  
  
  
  
  
  

• CAS Registry Number:

  29838-67-3

• Synonyms:

  ;(2R-trans)-3-((6-Deoxy-alpha-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-4H-1-benzopyran-4-one;4H-1-Benzopyran-4-one, 3-((6-deoxy-alpha-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R,3R)-;4H-1-Benzopyran-4-one, 3-((6-deoxy-alpha-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R-trans)-;astilbin;

• Molecular Formula:

  C₂₁H₂₂O₁₁

• Molecular Weight:

  450.3928

• Molecular Structure:

  

• Company:

  KINGHERBS LIMITED     [ China ]        

• Contact:

  Grace Lee

• Tel:

  +86-731-82055092

• Fax:

  +86-731-89865682

• Email:

  sales@kingherbs.com.cn