Acetylpropionyl

Acetylpropionyl
Names
	Preferred IUPAC name Pentane-2,3-dione
	Other names 2,3-Pentanedione
Identifiers
CAS Number	600-14-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	11254;
ECHA InfoCard	100.009.078
PubChem CID	11747;
UNII	K4WBE45SCM ;
CompTox Dashboard (EPA)	DTXSID6051435 ;
	InChI InChI=1S/C5H8O2/c1-3-5(7)4(2)6/h3H2,1-2H3 Key: TZMFJUDUGYTVRY-UHFFFAOYSA-N; InChI=1/C5H8O2/c1-3-5(7)4(2)6/h3H2,1-2H3 Key: TZMFJUDUGYTVRY-UHFFFAOYAL;
	SMILES CCC(=O)C(=O)C;
Properties
Chemical formula	C5H8O2
Molar mass	100.117 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Acetylpropionyl, also known as acetyl propionyl or 2,3-pentanedione, is an organic compound, specifically a diketone.

Uses for acetylpropionyl include as a:

Solvent for cellulose acetate, paints, inks, and lacquers
Starting material for dyes, pesticides, and drugs
Flavor, with an odor described as "buttery, cheesy, sweet, nutty, fruity, creamy, caramel"

Food production facilities use acetylpropionyl in foods such as cookies, coffee, cereal, and chocolate. It is also found in nicotine containing liquids for vaping, and in flavored cigarettes. It is often used as a flavoring substitute for diacetyl, but may share similar human pulmonary toxicity.