pharamceutical
material
intermediate
Curcumin
Cas NO.: 458-37-7
Molecular formula:C21H20O6
Molecular Weight:368.38
Assay:≥90%
Temperature : 183 ° C
Appearance : orange yellow crystalline powder.
Dissolved : do not dissolve in water, micro-soluble ether and benzene, can be dissolved in heating ethanol, acetic acid and

Soluble in alkaline solution.
Usage: a natural dye. Direct fuel use and also can be used as very indicative of pH, color range of 7.8 to 9.2, from yellow-

brown discoloration. Turmeric system for test paper and boric acid for the qualitative analysis.
Preparation or sources : from turmeric root access.