80044-64-0

Basic information

• Product Name: (2R,3S,4S)-4-benzylthioflavan-3,3',4',5,5',7-hexol
• Synonyms: (2R,3S,4S)-4-benzylthioflavan-3,3',4',5,5',7-hexol
• CAS NO: 80044-64-0
• Molecular Weight: 428.463
• Mol File: 80044-64-0.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: (2R,3S,4S)-4-benzylthioflavan-3,3',4',5,5',7-hexol(CAS DataBase Reference)
• NIST Chemistry Reference: (2R,3S,4S)-4-benzylthioflavan-3,3',4',5,5',7-hexol(80044-64-0)
• EPA Substance Registry System: (2R,3S,4S)-4-benzylthioflavan-3,3',4',5,5',7-hexol(80044-64-0)

Safety Data

• Hazardous Substances Data: 80044-64-0(Hazardous Substances Data)

Upstream product

• 79199-56-7 gallocatechin-(4α->8)-epicatechin 
• 100-53-8 phenylmethanethiol 
• 135821-63-5 gallocatechin-(4α->6)-epigallocatechin 
• 148802-38-4 catechin-(4α->8)-gallocatechin-(4α->6)-gallocatechin 
• 135820-76-7 gallocatechin-(4α->8)-gallocatechin-(4α->8)-epigallocatechin 
• 77983-30-3 (2R,2''R,3R,3''S,4R)-[4,8]-2,3-cis-3,4-trans-(-)-epigallocatechin-(+)-catechin 
• 126715-82-0 (-)-epigallocatechin (4β-8)-(-)-epigallocatechin 3-O-gallate 

Relevant articles and documents

Proanthocyanidins from Lotus Corniculatus

The chemical structure of the purified proanthocyanidin polymers of Lotus corniculatus was analysed by 13CNMR and by mild acid catalysed degradation in the presence of excess of phloroglucinol. The NMR data showed that the polymer was partially glycosidated with a number average Mr in the range 1800-2100 (six to seven flavanoid units). The products from phloroglucinol scission reaction indicated the extender flavan units to consist mostly of epicatechin (67%) and epigallocatechin (30%), with minor amounts of catechin and epiafzelechin units, which were linked together predominantly by C-4/C-8 interflavanoid bonds. The polymer chains were terminated mostly by catechin (83%) and, to a lesser extent, by epicatechin (16%). Copyright

HYDROLYSABLE TANNINS AND PROANTHOCYANIDINS FROM GREEN TEA

Two hydrolysable tannins were isolated from green tea, and their structures were characterized by chemical and spectral means as 1,4,6-tri-O-galloyl-β-D-glucose and 1-O-galloyl-4,6-(-)-hexahydroxydiphenoyl-β-D-glucose.In addition, a new proanthocyanidin gallate was isolated, together with the known procyanidins B-2, B-4 and C-1.The structure of the proanthocyanidin was established as epigallocatechin-(4β -> 8)-3-O-galloylepicatechin.Key Word Index - Thea sinensis; Theaceae; green tea; ellagitannin; gallotannin; proanthocyanidin; polyphenol.