(E)-ocimene is the major component of lilac, but furanoid terpene aldehyde (lilac aldehyde) and the corresponding alcohol, benzyl methyl ether, 1,4-dimethoxybenzene (hydroquinone dimethyl ether) and indole are the most characteristic components. The compound benzyl methyl ether is said to influence the diffusive aura of lilacs, especially in full bloom.