1 | Appearance | A white to yellowish white, crystalline powder | A white to yellowish white, crystalline powder. |
2 | Solubility | Passes | Practically insoluble in water, very soluble in acetone. Freely soluble in alcohol and in vegetable oils. |
3 | Identification A (by Freezing point) | 69°C | 69°C-70°C |
4 | Identification B (by UV absorbance test) | Complies | The solution should show an absorption maximum at 278 nm & the specific absorbance at the maximum should between 80 to 90. |
5 | Identification C (By IR) | Complies | IR Spectra of the sample should be concomitant with IR spectra of the standard |
6 | Identification D (By Chemical test) | Complies | A blue color should develop. |
7 | Appearance of Solution | Passes | The solution is clear and not more intensely coloured than reference solution Y5 or BY5. |
8 | Related substances (by TLC) | Less than 0.5% | 0.5% max. |
9 | Sulphated ash | 0.001% | NMT 0.1% |
10 | Methanol as residual solvent | 0.019% | 0.3% max |