Structure of anthocyanidins

structure of anthocyanidins
Choose an anthocyanidin from the drop-down menu list.
Name                R3 R5 R6 R7 R3' R5' colour

A UV/Vis spectrum of E163 in JCAMP-DX format shows a dilute solution of the anthocyanine dye (E163). The extinction coefficient E (1% solution in 1 cm cell) is 1120 at 537 nm.
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Copyright © 2006 by Robert John Lancashire, all rights reserved.

Created and maintained by Prof. Robert J. Lancashire,
The Department of Chemistry, University of the West Indies,
Mona Campus, Kingston 7, Jamaica.
Created April 1997. Links checked and/or last modified 20th August 2006.
URL http://wwwchem.uwimona.edu.jm/lectures/anthocy.html