Appearance | White to off-white Crystalline Powder |
Assay | 99.5% min. |
Specific Optical Rotation | +175°~+185° |
Transmittance | 95.0% min. |
pH Value(1% in water) | 5.0~7.0 |
Loss on Drying |
0.5%max. |
Melting Point |
202℃~210℃ |
Residue on Ignition |
0.5%max. |
Hydroquinone |
10 ppm max. |
Heavy Metals |
10 ppm max. |
Arsenic(As) |
2 ppm max. |
Total Plate Count |
1,000CFU/g |
Yeast and Mold |
100 CFU/g |