Any anthocyanidin cation that carries a hydroxy substituent at position 5.
| Member | Definition | Role |
|---|
| buclizine | | luteolinidin |
| cyanidin | An anthocyanidin cation that is flavylium substituted at positions 3, 3', 4', 5 and 7 by hydroxy groups. | cyanidin cation |
| delphinidin | An anthocyanidin cation consisting of benzopyrylium with hydroxy substituents at the 3-, 5- and 7-positions and a 3,4,5-trihydroxyphenyl group at the 2-position. It is a plant pigment responsible for the colours of the plants of the genera Viola and Delphinium. | delphinidin |
| malvidin | An anthocyanidin cation that is delphinidin carrying methyl substituents at positions 3' and 5'. | malvidin |
| pelargonidin | An anthocyanidin cation that is flavylium substituted by a hydroxy groups at positions 3, 5, 7 and 4'. | pelargonidin |
| peonidin | An anthocyanidin cation that is flavylium bearing four hydroxy substituents at positions 3, 4', 5 and 7 as well as a methoxy substituent at position 3'. | peonidin |
| petunidin | An anthocyanidin cation that is flavylium bearing five hydroxy substituents at positions 3, 3', 4', 5 and 7 as well as a methoxy substituent at position 5'. | petunidin |