Colchicine CAS 64-86-8
Colchicine CAS 64-86-8
Total Assay(by HPLC) 94.0%-101.0%
Conclusion: All of the results conform to USP28 specification.
Infrared Absorption : Conform to standard spectrum
Limit of ethyl acetate: less than 8.0%
Chromatographic purity : less than 5.0%
Organic volatile impurities:less than 100ppm
Optical Rotation : -240 - -250
Loss on drying :less than2.0%