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Molecule of the Week

November 29, 2010

Circumin

Molecular formula: C21H20O6
Molar Mass: 368.38 g/mol 
Appearance: yellow powder 
Melting point: 183 °Curcumin, is the bright yellow pigment in turmeric which is a member of the ginger family. Curcumin is known to protect the stomach from tainted foods and inhibits the growth of Helicobacter pylori, which has been implicated in gastric and colon cancers. Curcumin is widely used as a food coloring and food additative (natural yellow 3).

Can you identify the:

-      aromatic ring(s)
-      enol group(s)
-      ketone(s)
-      carbonyl

Sources cited: American Chemical Society, Wikipedia