Tiglic aldehyde is a colorless mobile liquid. Sp.Gr. 0.87. 2.5% soluble in water, miscible with alcohol and oils. Easily oxidized in air. Very diffusive, penetrating odor, unpleasantly pungent, irritating when undiluted, but quite pleasant,
Tiglic aldehyde has found little use in perfume compositions mainly as a trace component in special topnote compositions, bases, etc. It will support fruity, green and vinous notes, and it has interesting effects in Geranium, Clary Sage, etc.
Tiglic aldehyde is prepared by condensation of Acetaldehyde with Propionaldehyde.
