Chemical identity
CAS number: 458-37-7
Molecular formula: C21H20O6
Other names: Diferuloylmethane
Curcumin, also called diferuloylmethane, is one of the curcuminoids found in turmeric, the rhizome of Curcuma longa. Other curcuminoids in turmeric include demethoxycurcumin and bisdemethoxycurcumin.
A turmeric extract specification may report curcumin individually or report total curcuminoids. Check which measure the figure refers to before comparing grades, and use the batch result if you need the composition of a particular lot.
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