Physical state at 20 °C | Solid | Colour | Yellow crystalline powder |
Melting point/ Freezing point [°C] | 214°C | Solubility in water [% weight] | Insoluble in water |
Appearance | Yellow crystalline powder, darkens on exposure to light |
Melting point | About 210°C |
Absorption maxima (0.05% in methanol) | 259 & 362 nm |