acetoin

[ uh-set-oh-in ]

noun

, Chemistry.

1. a yellowish, pleasant-smelling liquid, C 4 H 8 O 2 , obtained from various carbohydrates, as glucose, by fermentation: used chiefly in the manufacture of flavors and essences.

Word History and Origins

Origin of acetoin¹

aceto- + -in ²

Example Sentences

Those chemicals include diacetyl, a diacetyl-alternative called acetyl propionyl, acetoin, and diketones.

From Salon

In total, 51 types of flavored e-cigarettes and liquids sold by leading brands were tested for diacetyl, acetoin, and 2,3-pentanedione.

From Salon

The Harvard researchers looked for the presence of diacetyl in 51 different e-cigarette flavors, as well as two other flavoring chemicals, acetoin, and 2,3-pentanedione.

From The Verge

One such flavoring chemical, acetoin, was detected in 46 of the flavors while another, called 2,3-pentanedione, was found in 23 of the flavors, the findings showed.

From US News

They tested the e-cigarettes for the presence of three chemicals considered “high priority” when it comes to respiratory risk: diacetyl, acetoin and 2,3-pentanedione.

From Time