| 1 | Appearance | White crystalline powder | A white to yellowish white, crystalline powder. | Ph.Eur |
| 2 | Solubility | Complies | Practically insoluble in water, very soluble in acetone. Freely soluble in alcohol and in vegetable oils. | Ph.Eur |
| 3 | Identification A (by Freezing point) | 69.5°C | 69°C-70°C | Ph.Eur |
| 4 | Identification B (by UV absorbance test) | 85.4 | The solution should show an absorption maximum at 278 nm & the specific absorbance at the maximum should between 80 to 90. | Ph.Eur |
| 5 | Identification C (By IR) | Complies | IR Spectra of the sample should be concomitant with IR spectra of the standard | Ph.Eur |
| 6 | Identification D (By Chemical test) | Complies | A blue color should develop. | Ph.Eur |
| 7 | Appearance of Solution | Complies | The solution is clear and not more intensely coloured than reference solution Y5 or BY5. | Ph.Eur |
| 8 | Related substances (by TLC) | Less than 0.5% | NMT 0.5% | Ph.Eur |
| 9 | Sulphated ash | 0.001% | NMT 0.1% | Ph.Eur |
| 10 | Residual Solvents (Methanol) | 0.18% | NMT 0.3% | In-house |