METHYLENE BLUE
METHYLENE BLUE
| Article No. | 533303 |
| Grade | AR |
| Purity | 95% |
| CAS No. | 61-73-4 |
| Molecular Formula | C16H18CIN3SxH2O |
| Molecular Weight | 319.859 (anhydrous basis) |
| H.S. Code | 3204.1351 |
| Shelf Life | 60 Months |
Physical properties
| Physical State at 20 °C | Solid |
| Colour | Dark green |
| Odour | Odorless |
| Melting/Freezing Point [°C] | 190 °C |
| Vapour Density | 13 |
| Solubility in Water [% weight] | Soluble in water |
Specifications
| Appearance | Dark Green to brown powder |
| Solubility | Soluble in water |
| pH | About 3 (10 g/l, H₂O, 20 °C) |
| Loss on Drying | 10-15% |
| Absorption Maxima | 660 – 665 nm |
| Absorptivity | Min 2250 |
| Packings | 25gm |
