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Catechin
An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms.
Year introduced: 1987(1977)
proanthocyanidin B3 [Supplementary Concept]
Date introduced: June 1, 2001
catechin-(5,6-bc)-4beta-(4''-hydroxyphenyl)-dihydro-2(H)-pyranone [Supplementary Concept]
a phenylpropanoid derivative of catechin from the needles of Taxus cuspidata; structure in first source
Date introduced: December 10, 2008
catechin-(4alpha-8)-7-O-beta-xylopyranosyl-catechin [Supplementary Concept]
from the bark of Betula pendula; structure in first source
Date introduced: June 19, 2012
4-(S-cysteinyl)catechin [Supplementary Concept]
an antioxidant with antineoplastic activity; structure in first source
Date introduced: September 20, 2005
3,5,7,3',4'-Pentaacetyl catechin [Supplementary Concept]
structure in first source
Date introduced: October 20, 2003
gallocatechin-(4-8)-catechin [Supplementary Concept]
from pomegranate peel; structure in first source
Date introduced: October 4, 2002
gallocatechin-(4-8)-gallocatechin-(4-8)-catechin [Supplementary Concept]
from Eucalyptus ovata; structure in first source
Date introduced: June 21, 2001
catechin (6'-8)-catechin [Supplementary Concept]
an alpha-glucosidase inhibitor; structure in first source
Date introduced: November 2, 2014
Proanthocyanidins
Dimers and oligomers of flavan-3-ol units (CATECHIN analogs) linked mainly through C4 to C8 bonds to leucoanthocyanidins. They are structurally similar to ANTHOCYANINS but are the result of a different fork in biosynthetic pathways.
Year introduced: 2004
Tea
The infusion of leaves of CAMELLIA SINENSIS (formerly Thea sinensis) as a beverage, the familiar Asian tea, which contains CATECHIN (especially epigallocatechin gallate) and CAFFEINE.
Year introduced: 1966
Areca
A plant genus of the family ARECACEAE. Members contain ARECOLINE and CATECHIN. The leaves and nuts have been used as masticatories, stimulants, and astringents in traditional medicine. The common name of betel is also used for PIPER BETLE. The common name of catechu is sometimes used for ACACIA CATECHU.
Year introduced: 1991(1986)1963
3-O-(3,4,5-trimethoxybenzoyl)catechin [Supplementary Concept]
Date introduced: July 22, 2011
catechin 7-O-glucopyranoside [Supplementary Concept]
a cytoprotective agent against streptozotocin damage; isolated from Ulmus davidiana
Date introduced: February 21, 2011
catechin-(4,8)-malvidin-3-O-glucoside [Supplementary Concept]
a red wine pigment; structure in first source
Date introduced: February 2, 2011
afzelchin-4'-8''-catechin [Supplementary Concept]
a free radical scavenging agent
Date introduced: January 5, 2011
flavocoxid [Supplementary Concept]
a mixture of baicalin and catechin used as an NSAID
Date introduced: October 25, 2009
pyranomalvidin-3-glucoside-catechin [Supplementary Concept]
Date introduced: April 2, 2009
3-O-(3-methylgalloyl)catechin [Supplementary Concept]
from Glochidion hirsutum; structure in first source
Date introduced: May 8, 2008
apple polyphenol extract [Supplementary Concept]
from unripe apples; contains about 40% condensed tannin, 20% chlorogenic acid, 7% procyanidin B2, 6% catechin, 4% phloridzin, 3% caffeic acid, 3% procyanidin B1, 1% p-coumaric acid, 1% phloretin, 0.5% (+)- catechinhas; has anti-hepatoma activities
Date introduced: February 1, 2008