piperonal

[pi-per-uh-nal, pahy-, pip-er-uh-]

pi·per·o·nal

[pi-per-uh-nal, pahy-, pip-er-uh-]
noun Chemistry.
a white, crystalline, water-insoluble aldehyde, C8H6O3, which darkens on exposure to light: used chiefly in perfumery and organic synthesis.
Also called piperonyl aldehyde, heliotropin.


Origin:
1865–70; piper(ine) + -one + -al1
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Piperonal is always a great word to know.
So is yield. Does it mean:
pertaining to an aromatic compound, which contains one or more benzene or equivalent heterocyclic rings: many such compounds have an agreeable odor
the quantity of product formed by the interaction of two or more substances, generally expressed as a percentage
Collins
World English Dictionary
piperonal (ˈpɪpərəʊˌnæl)
 
n
Also called: heliotropin a white fragrant aldehyde used in flavourings, perfumery, and suntan lotions. Formula: C8H6O3

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