piperonal
/pɪˈpɛrənal/ /pʌɪˈpɛrənal/Chemistry
noun
A crystalline bicyclic aldehyde obtained synthetically and from certain flowers and used in perfumery and flavourings; 1,3-benzodioxole-5-carboxaldehyde, (OCH2O)H3C6CHO.
Origin
Mid 19th century; earliest use found in Chemical News. From German Piperonal from Piper- (in Piperin) + -on + -al.