| Article No. | 02270 |
| Purity | dye content 95% |
| Molecular Formula | C21H14Br4O5S |
| H.S. Code | 3822.9090 |
| Grade | AR/ACS |
| CAS No. | 76-60-8 |
| Molecular Weight | 698.04 |
| Shelf Life | 60 Months |
| Physical state at 20 °C | Solid | Colour | White to buff | ||||
| Melting point/ Freezing point [°C] | 225 °C | Solubility in water [% weight] | Slightly soluble in water | ||||
| Appearance | Yellow to Tan Coloured Powder | Dye content (by spectrophotometry) | Min 95% |
| Identity (IR) | Passes test | pH 3.8-5.4 | Yellow to blue |
| Appearance of solution | Conforms | Absorption maxima (0.003% Methanol) | 418 – 428 nm |
| Molar Absorptivity at lambda max | Min 17000 | Loss on drying (at 110°C) | Max 3% |
| Transition range (according to ACS) | Passes test | Sensitivity | Passes test |