The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
Major species at pH 7.3. The structure is based on the fact that all (except one; see Wikipedia page for anthocyanidin) anthocyanidins have OH groups at positions 3,5,7,4' and can be substituted at positions 3' and 5'
Synonyms:
related_synonym:
Formula=C15H7O5R2; SMILES=C1=C(C(=[O+]C2=CC(=CC(=C12)[O-])O)C3=CC(=C(C(=C3)*)O)*)[O-]; an anthocyanidin