Items
EP Standards
Appearance
Yellowish or orange, crystalline powder, practically insoluble in water and in most organic solvents. It dissolves in dilute acids and in alkaline solutions
Identification
A: specific optical rotation: +18° to +22°
B: HPLC
C: TLC
Related substances
Impurity A: 0.5%max
Impurity D: 0.6%max
Any other impurity: 0.5%max
Total of other impurities: 1.0%max
Sulfated ash
0.2%max
Water
5.0-8.5%
Assay (anhydrous basis)
96.0-102.0%