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| Names | |
|---|---|
| IUPAC name (3S,5R,6S,3′R)-5,6-Epoxy-7′,8′-didehydro-5,6-dihydro-β,β-carotene-3,3′-diol | |
| Systematic IUPAC name (1R,3S,6S)-6-{(1E,3E,5E,7E,9E,11E,13E,15E)-18-[(4R)-4-Hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15-octaen-17-yn-1-yl}-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider |
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| Properties | |
| C40H54O3 | |
| Molar mass | 582.869 g·mol−1 |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Diadinoxanthin is a pigment found inphytoplankton. It has the formula C40H54O3. It gives rise to thexanthophyllsdiatoxanthin anddinoxanthin.
Diadinoxanthin is aplastid pigment. Plastid pigments include chlorophylls a and c, fucoxanthin, heteroxanthin, diatoxanthin, and diadinoxanthin.[1]
Diadinoxanthin is acarotenoid. It is found indiatoms, along with other carotenoids likefucoxanthin andbeta-carotene. Diatoms are referred to as golden-brown microalgae because of the color of their plastids and because the carotenoids maskchlorophyll-a andchlorophyll-c.[2]
Diadinoxanthin is axanthophyll. Xanthophyll pigments arephotoprotective pigments that help protect cells from harmful effects of too much light energy (light saturation).[3] It is present in cells along with diatoxanthin (another xanthophyll). Diadinoxanthin is stockpiled in the cell to become available when needed. Thus it is the inactive precursor of diatoxanthin, which is the active energy dissipator.[4]
