piperonal

/pi-per-uh-nal, pahy-, pip-er-uh-/US // pɪˈpɛr əˌnæl, paɪ-, ˈpɪp ər ə- //UK // (ˈpɪpərəʊˌnæl) //

哌啶酮,蒌蒿,哌啶醇,哌嗪

Definitions

n.名词 noun

1
Chemistry.
- : a white, crystalline, water-insoluble aldehyde, C8H6O3, which darkens on exposure to light: used chiefly in perfumery and organic synthesis.