1 | Appearance/Description | White, odorless crystalline powder. | White to faintly yellowish –white, odorless crystalline powder. |
2 | Solubility | Complies | Freely soluble in water, Practically insoluble in dichloromethane. |
3 | Identification (By Chemical test) | Complies | The mixture turns bright yellow and becomes clear. |
4 | Identification (By IR) | Complies | The IR absorption spectra of a substance should concomitant with the corresponding standard. |
5 | Completeness and color of solution / Appearance of solution | 0.015 | The solution is clear and its absorbance should not be more than 0.030. |
6 | Melting range | 129°C to 131°C | Between 128°C to 132°C |
7 | Specific rotation | -15.9° | Between -15.7° to -17.3° |
8 | Specific optical rotation (Dried substance) | -16.04 | Between -16.0 to -17.0 |
9 | Loss on drying | 0.3% | NMT 0.5 %. |
10 | Residue on ignition /Sulfated ash | 0.04% | NMT 0.1 % |
11 | Absence of reducing substances | Complies | The colour of the solution does not change |
12 | Reducing substances | Less than 0.2% | NMT 0.2% as glucose |
13 | Assay | 99.8% | 99.0 % - 100.5 % of C7H17NO5 on dried basis |
14 | chloride | Less than 100 ppm | NMT 100 ppm |
15 | Sulphate | Less than 150 ppm | NMT 150 ppm |
16 | Aluminium (Al) | 0.8 ppm | NMT 5 ppm |
17 | Iron | Less than 10 ppm | NMT 10 ppm |
18 | Nickel (Ni) | 2.1 ppm | NMT 5 ppm |
19 | Residual Solvents (Methanol) | 57 ppm | NMT 3000 ppm |