Phlobaphene

Phlobaphene
Chemical structure of phlobaphenes, where R = H, OH, or OCH3
Phlobaphene is the red pigment in the pericarp of certain maize varieties
Identifiers
Properties
Variable
Molar mass Variable
Appearance Red solid
Insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Phlobaphenes (or phlobaphens) are reddish, alcohol-soluble and water-insoluble phenolic substances. They can be extracted from plants, or be the result from treatment of tannin extracts with mineral acids (tanner's red). The name phlobaphen come from the Greek roots φλoιὀς (phloios) meaning bark and βαφή (baphe) meaning dye.

No biological activities have currently been reported for phlobaphenes. They are converted into humins in soils.