176896-91-6

Basic information

• Product Name: (2R,3S,8S,9S,10R)-10-(2,4-Dihydroxy-phenyl)-8-(3,4-dihydroxy-phenyl)-6-[(2R,3S,4S)-2-(3,4-dihydroxy-phenyl)-3,7-dihydroxy-chroman-4-yl]-2-(3-hydroxy-4-methoxy-phenyl)-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,5,9-triol
• CAS NO: 176896-91-6
• Molecular Weight: 848.814
• Mol File: 176896-91-6.mol

Chemical Properties

• CAS DataBase Reference: (2R,3S,8S,9S,10R)-10-(2,4-Dihydroxy-phenyl)-8-(3,4-dihydroxy-phenyl)-6-[(2R,3S,4S)-2-(3,4-dihydroxy-phenyl)-3,7-dihydroxy-chroman-4-yl]-2-(3-hydroxy-4-methoxy-phenyl)-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,5,9-triol(CAS DataBase Reference)
• NIST Chemistry Reference: (2R,3S,8S,9S,10R)-10-(2,4-Dihydroxy-phenyl)-8-(3,4-dihydroxy-phenyl)-6-[(2R,3S,4S)-2-(3,4-dihydroxy-phenyl)-3,7-dihydroxy-chroman-4-yl]-2-(3-hydroxy-4-methoxy-phenyl)-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,5,9-triol(176896-91-6)
• EPA Substance Registry System: (2R,3S,8S,9S,10R)-10-(2,4-Dihydroxy-phenyl)-8-(3,4-dihydroxy-phenyl)-6-[(2R,3S,4S)-2-(3,4-dihydroxy-phenyl)-3,7-dihydroxy-chroman-4-yl]-2-(3-hydroxy-4-methoxy-phenyl)-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,5,9-triol(176896-91-6)

Safety Data

• Hazardous Substances Data: 176896-91-6(Hazardous Substances Data)

Upstream product

• 182511-63-3 (2R,3S,4S,2'R,3'S,2''R,3''S,4''R)-2,2''-Bis-(3,4-dihydroxy-phenyl)-2'-(3-hydroxy-4-methoxy-phenyl)-3,4,3',4',3'',4''-hexahydro-2H,2'H,2''H-[4,6';8',4'']terchromene-3,7,3',5',7',3'',7''-heptaol 
• 119067-92-4 8,9-cis-9,10-trans-tetrahydro-2H,8H-pyrano<2,3-h>chromane 
• 967-27-1 (+)-mollisacacidin 

Relevant articles and documents

Structure and synthesis of phlobatannins related to the (4α,6:4β,8)- bis-fisetinidol-catechin profisetinidin triflavanoid

The natural class of phlobaphene condensed tannins is complemented by two functionalized hexahydrodipyrano[2,3-f:2',3'-h]chromenes representing the products of stereoselective pyran ring rearrangement of the 2,3-trans-3,4- trans- and 2,3-trans-3,4-cis-flavan-3-ol moieties in the bis-fisetinidol- (4α,6:4β,8)-catechin triflavanoid. Structural elucidation of these complex natural products was effected by synthesis via base catalysed conversion of the 4-O(E)-methyl ether of their presumed protisetinidin triflavanoid precursor.

Oligomeric flavanoids. Part 24. Controlled biomimetic synthesis of profisetinidin triflavanoid related phlobatannins

The complex structures of the economically important group of profisetinidin triflavanoid related phlobatannins are synthetically accessable in a controlled biomimetic fashion via the repetitive formation of the interflavanyl bond and pyran ring rearrange