Julolidine is a heterocyclic aromatic organic compound. It has the formula C<sub>12</sub>H<sub>15</sub>N.
The first synthesis of julolidine was first reported by G. Pinkus in 1892.
This compound and its derivatives have found recent interest as photoconductive materials, chemiluminescence substances, chromogenic substrates in analytical redox reactions, dye intermediates, potential antidepressants and tranquilizers, nonlinear optical materials, high sensitivity photopolymerizable materials, and for improving color stability in photography.