胡椒醛是一种常用于香水及食品中香料的有机化合物化合物添加剂 ，分子结构上与其他芳香族，醛化合物如苯甲醛和香兰素相似。

胡椒醛天然存在于各种植物。例子包括莳萝，香草，香堇菜，和黑胡椒。

Piperonal, also known as heliotropin, is an organic compound which is commonly found in fragrances and flavors. The molecule is structurally related to other aromatic aldehydes such as benzaldehyde and vanillin.