Physical Properties
| Physical state at 20 °C | Solid | Odour | Odorless |
| Melting point/ Freezing point [°C] | > 300 °C | Solubility in water [% weight] | 500 g/l at 20 °C |
| Colour | Dark red crystalline | pH value | 8.3 at 10 g/l at 20 °C |
Partition coefficient Log Pow octanol / water at 20°C | -0.67 |
Packings
1000g
100g
25g
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
Specifications
| Appearance | Orange-red to green-brown to dark brown powder |
| Identity (IR) | Confirms to structure |
| Loss on drying (at 105°C) | Max 10.0% |
| Absorption maxima (in buffer pH 8.0) | 488 to 491 nm |
| UV absorbance ratio (P-15/P+15) | 1.2 – 1.7 |
| Specific absorptivity 1%/1cm (at λmax; buffer pH 8.0) | Min 1700 |
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