Compound NJ2
From Wikipedia, the free encyclopedia
Page Template:Chembox/styles.css has no content.
Template:Chembox IndexlistTemplate:Chembox CompToxTemplate:Chembox Datapage check| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. | |
| Names | |
|---|---|
| IUPAC name
6,20-bis(3,4-dihydroxyphenyl)-7,10,16,19-tetrahydroxy-5,21-dioxa-13-oxoniapentacyclo[12.8.0.03,12.04,9.017,22]docosa-1,3(12),4(9),10,13,15,17(22)-heptaene-2-carboxylic acid
| |
| Identifiers | |
3D model (JSmol)
|
Page Template:Plainlist/styles.css has no content. |
| EC Number | Page Template:Plainlist/styles.css has no content. |
PubChem CID
|
Page Template:Plainlist/styles.css has no content. |
| RTECS number | Page Template:Plainlist/styles.css has no content. |
| |
| |
| Properties | |
| C32H25O13+ | |
| Molar mass | [cannot calculate]Expression error: Unexpected < operator |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Template:Chembox Footer/trackingTemplate:Short description
Compound NJ2 is a xanthylium yellowish pigment found in wine.
In model solutions, colorless compounds, such as catechin, can give rise to new types of pigments. The first step is the formation of colorless dimeric compounds consisting of two flavanol units linked by carboxy-methine bridge. This is followed by the formation of xanthylium salt yellowish pigments and their ethyl esters, resulting from the dehydration of the colorless dimers, followed by an oxidation process. The loss of a water molecule takes place between two A ring hydroxyl groups of the colorless dimers.[1]
See also
References
Page Template:Reflist/styles.css has no content.
- ^ Page Module:Citation/CS1/styles.css has no content.Es-Safi, Nour-Eddine; Le Guernevé, Christine; Fulcrand, Hélène; Cheynier, Véronique; Moutounet, Michel (2000). "Xanthylium salts formation involved in wine colour changes". International Journal of Food Science & Technology. 35: 63–74. doi:10.1046/j.1365-2621.2000.00339.x.
