1 | Appearance/Description | White, odorless crystalline powder. | White to faintly yellowish –white, odorless crystalline powder. |
2 | Solubility | Passes | Freely soluble in water, sparingly soluble in ethanol (96 %). 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 | 0.006 | The solution is clear and its absorbance should not be more than 0.030. |
6 | Melting range | 128°C to 130°C | Between 128°C to 132°C. |
7 | Specific rotation | -16.1° | Between -15.7° to -17.3°. |
8 | Specific optical rotation (Dried substance) | -16.4° | 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 | Passes | 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) | 0.81 ppm | NMT 5 ppm. |
17 | Iron | Less than 10 ppm | NMT 10 ppm. |
18 | Nickel (Ni) | 0.14 ppm | NMT 5 ppm. |
19 | Residual Solvents (Methanol) | 66 ppm | NMT 3000 ppm. |
20 | Total aerobic microbial count | Less than 1000 CFU/gm | NMT 1000 CFU /gm |
21 | Total combined yeast and molds count | Less than 100 CFU/gm | NMT 100 CFU/ gm |
22 | Bacterial endotoxins | Less than 1.5 IU/gm | NMT 1.5 IU / gm |