2-Formyl-3,4-dihydro-2H-pyran Chemical Properties bp 146 °C(lit.) density 1.08 g/mL at 25 °C refractive index n20/D 1.466(lit.) Fp 54 °C
General Description A colorless or yellow liquid with a pungent disagreeable odor. Flash point 118°F. Density 1.077 g / cm3 (8.96 lb / gal). May be irritating to the eyes and mucous membranes; long-term exposure may result in adverse health effects. Vapors denser than air. Used to make other chemicals, plastics. Air & Water Reactions Flammable. Soluble in water.