92549-54-7

Basic information

• Product Name: (2S)-7,4'-dihydroxyflavan-4-ol
• CAS NO: 92549-54-7
• Molecular Weight: 258.274
• Mol File: 92549-54-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (2S)-7,4'-dihydroxyflavan-4-ol(CAS DataBase Reference)
• NIST Chemistry Reference: (2S)-7,4'-dihydroxyflavan-4-ol(92549-54-7)
• EPA Substance Registry System: (2S)-7,4'-dihydroxyflavan-4-ol(92549-54-7)

Safety Data

• Hazardous Substances Data: 92549-54-7(Hazardous Substances Data)

Upstream product

• 578-86-9 liquiritigenin 

Downstream Products

• 114637-89-7 (2S)-7,4'-dihydroxyflavan-(4β->6)-epiafzelechin 
• 114715-51-4 (2S)-7,4'-dihydroxyflavan-(4α->6)-epiafzelechin 
• 114637-88-6 (2S)-7,4'-dihydroxyflavan-(4β->8)-epiafzelechin 
• 114715-50-3 (2S)-7,4'-dihydroxyflavan-(4α->8)-epiafzelechin 

Relevant articles and documents

Tannins and Related Compounds. LXI. Isolation and Structures of Novel Bi- and Triflavanoids from the Leaves of Cassia fistula L.

Together with (-)-epiafzelechin (1) and its 3-O-glucoside (4), (-)-epicatechin (2) and procyanidin B-2 (3), seven new biflavanoids (5-7, 9-12) and two triflavanoids (8, 13) have been isolated from the leaves of Cassia fistula L. (Leguminosae).On the basis of chemical and spectroscopic evidence, the structures of 5-8 were established to be proanthocyanidins each having (-)-epiafzelechin unit(s) in the molecule, while 9-13 were shown to consist of (2S)-7,4'-dihydroxyflavan and (-)-epiafzelechin units.Keywords - Cassia fistula; Leguminosae; proanthocyanidin; flavan-3-ol glucoside; flavan-3-ol; flavan; condensed tannin; thiolytic degradation; acid-catalyzed condensation