Appearance: yellow green needle-like or flaky crystal Purity(chromatogram):≥95%;≥97%;≥99% Melting point:111°C Boiling point:375°C Density:1.202　Refractive index:1.0996 (18.7°C) Output: 100ton/year Packing:25kg carton ( export grade) Uses:used as fluorescer, dye intermediate, pharmaceutical intermediate