One of the mysteries of the English language finally explained.
A crystalline bicyclic aldehyde obtained synthetically and from certain flowers and used in perfumery and flavourings; 1,3-benzodioxole-5-carboxaldehyde, (OCH₂O)H₃C₆—CHO.
Mid 19th century; earliest use found in Chemical News. From German Piperonal from Piper- (in Piperin) + -on + -al.
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