109718-31-2

Basic information

• Product Name: (2R,3S)-2,3-trans-3-hydroxy-3',4',7,8-tetramethoxyflavan
• Synonyms: (2R,3S)-2,3-trans-3-hydroxy-3',4',7,8-tetramethoxyflavan
• CAS NO: 109718-31-2
• Molecular Weight: 346.38
• Mol File: 109718-31-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (2R,3S)-2,3-trans-3-hydroxy-3',4',7,8-tetramethoxyflavan(CAS DataBase Reference)
• NIST Chemistry Reference: (2R,3S)-2,3-trans-3-hydroxy-3',4',7,8-tetramethoxyflavan(109718-31-2)
• EPA Substance Registry System: (2R,3S)-2,3-trans-3-hydroxy-3',4',7,8-tetramethoxyflavan(109718-31-2)

Safety Data

• Hazardous Substances Data: 109718-31-2(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 
• 109671-55-8 2,3-trans-3',4',7,8-tetrahydroxyflavan-3-ol 

Downstream Products

• 54300-90-2 (2R,3S,4S)-3-acetoxy-3',4,4',7,8-pentamethoxyflavan 
• 109718-24-3 (2R,3S)-2,3-trans-3-acetoxy-3',4',7,8-tetramethoxyflavan 
• 20754-51-2 (+)-2,3-trans-3',4',7,8'-tetramethoxydihydroflavonol 
• 29799-52-8 4β-Hydroxy-tetra-O-methyl-(+)-mesquitol 
• 54325-02-9 4α-Hydroxy-tetra-O-methyl-(+)-mesquitol 
• 120-14-9 3,4-dimethoxy-benzaldehyde 

Relevant articles and documents

Synthesis of Condensed Tannins. Part 17. Oligomeric (2R,3S)-3,3',4',7,8-Pentahydroxyflavans: Atropisomerism and Conformation of Biphenyl and m-Terphenyl Analogues from Prosopis glandulosa ('Mesquite')

(2R,3S)-2,3-trans-3',4',7,8-Tetrahydroxyflavan-3-ol , the predominant metabolite in the heartwood of Prosopis glandulosa, represents a putative precursor of a variety of oligomers, including conventional - and -biflavan-3-ols, a -1,3-diarylpropylflavan-3-ol, - and atropisomeric -biphenyl-type biflavan-3-ols, and -m-terphenyl-type triflavan-3-ols.Other participants in these condensations are mainly (+)-catechin, and also the flavan-3,4-diol analogue of (+)-mesquitol.Oligomeric structures were confirmed by biomimetic oxidative and acid-induced couplings, and by nuclear Overhauser effect difference spectroscopy.These applications enabled correction of previous structural assignments for atropisomeric -(+)-mesquitol-(+)-catechins and -bis--(+)-catechins, and determination of their conformations.