2,3-BUTANEDIONE - (431-03-8)

Introduction

Name: 2,3-butanedione; biacetyl
* IUPAC
CAS Number: 431-03-8
Chemical Formula: C4H6O2
Molar Mass: 86.08924 g
State of Matter: liquid with buttery odor
Mass Percent: C 55.805 %; H 7.0248 %; O 37.169 % 
Isomers:  vinyl acetate  •  butynediol  •  diepoxybutane  •  methyl acrylate  •  &gamma

Classification

• organic

Uses/Function

• "Carrier of aroma of butter, vinegar, coffee, and other foods." 1

Physical Properties


Boiling Point:*
88°C 2 = 361.15 K = 190.4°F

* - 1 atm pressure

Bonding

For More Information

Sources

(1) - The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 13th ed.; Budavari, S.; O'Neil, M.J.; Smith, A.; Heckelman, P. E.; Kinneary, J. F., Eds.; Merck & Co.: Whitehouse Station, NJ, 2001; entry 2985.
(2) - Shriner, Ralph L., Fuson, Reynold C., and Curtin, David Y. The Systematic Identification of Organic Compounds, 4th ed.; John Wiley & Sons: New York, 1962; p 316.