How would find out if cinnamon aldehyde is a Tannin?

Question

How would you find out if cinnamon aldehyde is a tannin? Or if someone knows- is cinnamon aldehyde a Tannin?

Answer 1

You can see it comparing the structure formulas:

Cinnamaldehyde ( (E)-3-phenylprop-2-enal ) is - as the name says - an aldehyde with the characteristic H - C = O - group:

http://en.wikipedia.org/wiki/Cinnamaldeh...

Tannins is a group of polyphenols, basic unit gallic acid ( 3,4,5-hydroxybenzoic acid ) for hydrolyzable tannins with the characteristic COOH - group for organic acids and flavone ( with the characteristic C = O - group for ketones ) for condensed tannins :

http://en.wikipedia.org/wiki/Tannin

example for condensed tannin OPC:

http://en.wikipedia.org/wiki/Proanthocya...

So cinnamon aldehyde isn`t a tannin.