Analysis Item | Specification | |
Appearance | White crystals or crystalline powder, odorless, taste slightly bitter | |
Solubility | Very soluble in chloroform or acetone;freely soluble in ethanol or ethyl Acetate, practically insoluble in water | |
Melting Point | 86~90℃ | |
Specific optical rotation | +168°~+173° | |
Identification | ||
A. Color Reaction | A pale yellow color is produced | |
B. Color Reaction | A peach blow color is produced | |
C. HPLC | The retention time of main peak of the test and standard are concordant | |
D. IR | Infrared absorption spectrum of the test and standard (or infrared references spectra No.519) are concordant | |
Chlorides | ≤0.01% | |
Related substances(HPLC) | Any single impurity ≤0.5% | |
| Any impurity between 0.25% and 0.5% ≤1 | |
| Total impurities≤1% | |
Residual Solvent(GC) | Methanol ≤0.3% | |
| Dichloromethane ≤0.06% | |
Loss on drying | ≤0.5% | |
Residue on ignition | ≤0.1% | |
Assay | 98%~102%( HPLC) |
Product Categories : Plant Extract > Other Plant Extract