5-Methyl-2(5H)-furanone
[CAS# 591-11-7]

Identification

• Name: 5-Methyl-2(5H)-furanone
• Synonyms: 2-Oxo-5-methyl-2,5-dihydrofuran; 2-Penten-4-olide; 4-Hydroxy-2-pentenoic acid gamma-lactone; 4-Hydroxypent-2-enoic acid lactone; 4-Methyl-2-buten-4-olide; 5-Methyl-2(5H)-furanone; 5-Methyl-5H-furan-2-one; NSC 655
• Molecular Formula: C₅H₆O₂
• Molecular Weight: 98.10
• CAS Registry Number: 591-11-7
• EC Number: 209-700-2

Properties

• Solubility: Freely soluble (159 g/L) (25 ºC), Calc.^*
• Density: 1.081 g/cm³ (20.44 ºC)^**
• Melting point: <-17 ºC^***
• Boiling point: 209 ºC^***
• Refractive index: 1.4545 (20 ºC)^****
• Flash point: 78.9±16.1 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Kuehl, F. A., Jr.; Journal of the Chemical Society 1950, P2213-18.

^*** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^**** Badovskaya, L. A.; Khimiya Geterotsiklicheskikh Soedinenii 1978, (10), P1314-19.