Curcumin
 Enol form
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 Keto form
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| Names | |
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Preferred IUPAC name
(1E,6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione
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| Other names
(1E,6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione
Diferuloylmethane Curcumin I C.I. 75300 Natural Yellow 3 |
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| Identifiers | |
458-37-7 
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| 3D model (Jmol) | Interactive image |
| ChEBI |
CHEBI:3962
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| ChEMBL |
ChEMBL116438 
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| ChemSpider |
839564
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| E number | E100 (colours) |
| 7000 | |
| PubChem | 969516 |
| UNII |
IT942ZTH98
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| Properties | |
| C21H20O6 | |
| Molar mass | 368.39 g·mol−1 |
| Appearance | Bright yellow-orange powder |
| Melting point | 183 °C (361 °F; 456 K) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 (what is ?) |
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| Infobox references | |
Curcumin (/ˈkərkjuːmən/, diferuloylmethane) is a bright yellow chemical produced by some plants. It is the principal curcuminoid of turmeric (Curcuma longa), a member of the ginger family (Zingiberaceae). It is sold as an herbal supplement, cosmetics ingredient, food flavoring, and food coloring. As a food additive, its E number is E100.
It was isolated in 1815 when Vogel and Pelletier reported the isolation of a "yellow coloring-matter" from the rhizomes of turmeric and named it curcumin. Although curcumin has been used historically in Ayurvedic medicine, its potential medicinal properties remain unproven and are an area of active investigation.
Chemically, curcumin is a diarylheptanoid, belonging to the group of curcuminoids, which are natural phenols responsible for turmeric's yellow color. It is a tautomeric compound existing in enolic form in organic solvents and as a keto form in water.
The most common applications are as a dietary supplement, in cosmetics, as a food coloring, and as flavoring for foods such as turmeric-flavored beverages (Japan).
Annual sales of curcumin have increased since 2012, largely due to an increase in its popularity as a dietary supplement. It is increasingly popular in skin care products that are marketed as containing natural ingredients or dyes, especially in Asia. The largest market is in North America, where sales exceeded US$20 million in 2014.
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Wikipedia