1 | Description | White crystalline powder. | A White or almost white crystalline powder. |
2 | Solubility | Complies | Freely soluble in ethanol (95%) ; soluble in ether; slightly soluble in water. |
3 | Identification A (By IR) | Complies | IR spectra of the sample should be concomittant with IR spectra of the corresponding standard. |
4 | Identification B (by UV absorbance test) | Complies | Absorbance maxima should be at about 264 nm & absorbance at absorbance max should be between 0.43 to 0.51 |
5 | Identification C (By Chemical test) | Complies | The solution should be decolorised. |
6 | Appearance of solution | Complies | A 5.0% w/v solution in ethanol (95%) should be clear and colourless. |
7 | Heavy metals | Less than 10ppm | 10ppm max |
8 | Aldehydes | Less than 0.15% | NMT 0.15% |
9 | Sulphated ash | 0.10% | NMT 0.2% |
10 | Water | 0.11% | NMT 1.0% |
11 | Assay (Anhydrous basis) | 99.8% | 99.0% - 101.0% |