| Appearance (Colour) | White or almost white |
| Appearance (Form) | Crystalline powder |
| Solubility | Freely soluble in water,very slightly soluble in ethanol (96%) |
| Identification (IR Spectrum) | A) Passes |
| Identification | B) By TLC
C) By Chemical test |
| Appearance of Solution | Solution is clear (10% in water) |
| pH (5% aq. solution) | 5.9 - 6.4 |
| Related substances (By HPLC) | Individual impurity : max 0.1%
Any other impurities : max 0.1%
Total impurities : max 0.2% |
| Ninhydrin - Positive substance | Individual impurity : max 0.1%
Total impurities : max 1% |
| Chloride (CI) | Max. 75 ppm |
| Ammonia (NH3) | At 570nm, NMT area of corresponding peak obtained from reference solution C ( 0.02%) |
| Loss on drying | Max 0.5% (at 105°C for 2hrs) |
| Sulphated Ash | Max 0.1% |
| Assay (On dry basis) | 98.5 - 101.0% |
| Reference | BP 2020 |
