Colorless liquid. The boiling point is 157 ° C; the relative density is 0.819. Miscible in ethanol, propylene glycol and oil. There are light blue shoots breath, wine, fruit and fat flavor. Naturally occurs in some fruits such as apples, strawberries, bitter oranges, also found in camphor oil, tea leaves, tobacco leaves, eucalyptus and coffee. It appears as colorless transparent liquid with fruit-like aroma at low concentration. Sweet; rapidly oxidized in the air; can have polymerization reaction upon contact with concentrated inorganic acid. Similar to normal fatty aldehydes, it can be oxidized to caproic acid and reduced to hexanol.
