Flavanols (also flavan-3-ols)
Polyphenols are natural chemicals found in most plant. In general terms, phenolic compounds or polyphenols, have a similar basic structural chemistry including an "aromatic" or "phenolic" ring structure.
This site is particularly concerned with Flavanols or Flavan-3-ols which are most abundant or concentrated in fruit such as apples and grapes, wine, green tea and cocoa. See Flavanoid network map. You can view various flavanol compound structures here.
The key chemical structure is made up of epicatechin monomer sub-units. We provide links to data through the PubChem Compounds database which can also lead through to:
CCRIS Carcinogenicity, tumour promotion, tumour inhibition, and mutagenicity tests
EINECS European Inventory of Existing Chemical Substances
TOXLINE Citations to the Toxicological Literature
ClinicalTrials.gov Registry of US Federal and Private Clinical Trials
Note: This website provides medical information and specifically does NOT provide medical advice.