... aldehyde pharmaceutical, pesticide intermediates, etc. Is used for synthesis of propionic acid aldehyde, propionic acid in food, feed and grain ... a spice intermediates.Physical Properties: Colorless liquid. The boiling point 47.93 ° C, melting point - 81.0 ° C, refractive index, relative ... oral LD50 400mg/kg, air is allowed in the concentration of 8000 * 10 6. Quality standard content, epoxy propane ...