| Message: | HUPHARMA Curcumin Turmeric Extract
Product name : Curcumin，Turmeric Extract
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
CAS : 458-37-7
Purity : 90% 95% HPLC/UV
Molecular Formula : C21H20O6
Molar Mass : 368.385 g·mol−1
Appearance : Bright yellow-orange powder
Description：
Curcumin is the principal curcuminoids of the popular Indian spice turmeric, which is a member of the ginger family (Zingiberaceae). The other two curcuminoids are desmethoxycurcumin and bis-desmethoxycurcumin. The curcuminoids are polyphenols and are responsible for the yellow color of turmeric. Curcumin can exist in at least two tautomeric forms, keto and enol. The enol form is more energetically stable in the solid phase and in solution.
Curcumin can be used for boron quantification in the so-called curcumin method. It reacts with boric acid forming a red colored compound, known as rosocyanine.
Curcumin is brightly colored and may be used as a food coloring. As a food additive, its E number is E100
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