1 | Appearance/Description | White odorless crystalline powder. | White to faintly yellowish –white, odorless crystalline powder.(USP/Ph.Eur./CP) |
2 | Solubility | Passes | Freely soluble in water, sparingly soluble in alcohol. Practically insoluble in dichloromethane and in trichloromethane. (USP/Ph.Eur./CP) |
3 | Identification (By chemical test 1) | Complies | The mixture turns bright yellow and becomes clear. (USP) |
4 | Identification (By chemical test 2) | Complies | Silver mirror should form. (CP) |
5 | Identification (By chemical test 3) | Complies | Initial brown-red precipitate appears, and then it is dissolved into a brown-red solution. (CP) |
6 | Identification (By chemical test 4) | Complies | Yellow green precipitate should form. (CP) |
7 | Identification (By IR) | Complies | The IR absorption spectra of a substance should concomitant with the corresponding standard. (Ph.Eur) |
8 | Appearance of solution | 0.024 | The solution is clear and its absorbance should be NMT 0.030. (USP/Ph.Eur/CP) |
9 | Melting range | 129°C to 130°C | Between 128°C to 132°C (USP/Ph.Eur) |
10 | Specific Rotation /Optical rotation | -16.3° | Between -15.7° to -17.3°. (USP) |
11 | Specific Rotation /Optical rotation (Dried substance) | -16.3° | Between -16.0Ôü░ to -17.0Ôü░ (Ph.Eur) |
12 | Loss on drying | 0.1% | NMT 0.5 % w/w (USP/Ph.Eur./CP) |
13 | Residue on ignition /Sulfated ash | 0.06% | NMT 0.1 % w/w . (USP/Ph.Eur./CP) |
14 | Absence of reducing substances | Passes | The colour of the solution does not change. (USP) |
15 | Reducing substances | Less than 0.2% | NMT 0.2% w/w as glucose. (Ph.Eur/CP) |
16 | Assay | 99.8% | 99.0 % to 100.5 % w/w on dried basis. (USP/Ph.Eur.) |
17 | Chloride (Cl) | Less than 100 ppm | NMT 100 ppm. (Ph.Eur) |
18 | Sulphate | Less than 150 ppm | NMT 150 ppm. (Ph.Eur) |
19 | Aluminium (Al) | 0.58 ppm | NMT 5 ppm. (Ph.Eur) |
20 | Iron | 1.03 ppm | NMT 10 ppm. (Ph.Eur) |
21 | Nickel (Ni) | 0.25 ppm | NMT 5 ppm. (Ph.Eur/CP) |
22 | Related substances: Single impurity | Not detected | NMT 0.25%. (CP) |
23 | Related substances: Total impurity | Not detected | NMT 0.5%. (CP) |
24 | Residual Solvents (Methanol) | Less than 3000 ppm | NMT 3000 ppm. (In-house) |
25 | Total aerobic microbial count | Less than 100 CFU/g | NMT 100 CFU /g (In-house) |
26 | Total combined yeast and molds count | Less than 10 CFU/g | NMT 10 CFU / g (In-house) |
27 | Bacterial endotoxins | Less than 1.5 IU/g | NMT 1.5 IU / g (In-house) |