A white or yellowish crystalline compound, C8H8O3, found in vanilla beans and certain balsams and resins and used in perfumes, flavorings, and pharmaceuticals.

• 香草醛，香兰素一种白色或淡黄色晶体化合物，C8H8O3，见于香子兰豆以及某些香脂和松脂中，用于做香水、调味品和药剂