piperine
/ˈpɪpəriːn/(also piperin)
noun
Chemistry. A crystalline alkaloid obtained from pepper plants (especially black pepper and white pepper) which is used as an insecticide and to give pungency to brandy; 1-piperoylpiperidine, (OCH2O)H3C6(CH)4CONC5H10.
Origin
Early 19th century. From classical Latin piper pepper + -ine. Compare earlier piperine.