1H-Indole Molecular Formula: C8H7N CAS NO. :120-72-9 EINECS:204-420-7 UN: 2811 6.1/PG 3 Main application: Widely used in the manufacture of spices, pesticides, and pharmaceutical industries. Physicochemical properties: Appearance: White crystals have an unpleasant smell Purity: >97% Stability: Stable, but may be light or air sensitive. Incompatible with strong oxidizing agents, iron and iron salts. Refractive index: 1.68 Flashing point: >230 °F Vapor pressure: 0.0298 mm Hg ( 25 °C) Storage condition: 2-8ºC Melting point: 51-54°C(lit.) Solubility: 2.80 g/L (25 ºC) Density: 1.22 Boiling point: 253-254 °C (lit.)