3-Hydroxy-4-methyl-5-ethyl-2(5H)furanone

IUPAC Name: 2-Ethyl-4-hydroxy-3-methyl-2H-furan-5-one 
Following is the structure of 2(5H)-Furanone,5-ethyl-3-hydroxy-4-methyl- (CAS NO.698-10-2):
                       
Empirical Formula: C₇H₁₀O₃
Molecular Weight: 142.1525 g/mol
EINECS: 211-811-6
Index of Refraction: 1.501
Surface Tension: 39.6 dyne/cm
Density: 1.183 g/cm³
Flash Point: 147 °C
Melting point: 31-35 °C(lit.)
Enthalpy of Vaporization: 64.66 kJ/mol
Boiling Point: 316.4 °C at 760 mmHg
Vapour Pressure: 3.47E-05 mmHg at 25 °C
Appearance of 2(5H)-Furanone,5-ethyl-3-hydroxy-4-methyl- (CAS NO.698-10-2): light yellow liqui
Solubility of 2(5H)-Furanone,5-ethyl-3-hydroxy-4-methyl- (CAS NO.698-10-2):  Soluble  in water
Product Categories: Alphabetical Listings; E-F; Flavors and Fragrances
Canonical SMILES: CCC1C(=C(C(=O)O1)O)C
InChI: InChI=1S/C7H10O3/c1-3-5-4(2)6(8)7(9)10-5/h5,8H,3H2,1-2H3
InChIKey: IUFQZPBIRYFPFD-UHFFFAOYSA-N

Safety Statements: 24/25 
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3

 2(5H)-Furanone,5-ethyl-3-hydroxy-4-methyl- , its cas register number is 698-10-2. It also can be called 2,4-Dihydroxy-3-methyl-2-hexenoic acid gamma-lactone ; 2-Ethyl-3-methyl-4-hydroxydihydro-(2,5)-furan-5-one ; 2-Hexenoic acid, 2,4-dihydroxy-3-methyl-, gamma-lactone ; 2-Hydroxy-3-methyl-gamma-2-hexenolactone ; 4-Methyl-5-ethyl-3-hydroxyfuranone ; and 5-Ethyl-3-hydroxy-4-methyl-2(5H)-furanone .
 2(5H)-Furanone,5-ethyl-3-hydroxy-4-methyl- (CAS NO.698-10-2) is stable under normal temperatures and pressures. While, its hazardous decomposition products are carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. It should be stored in a tightly closed container, or stored in a cool, dry, well-ventilated area away from incompatible substances, or stored under an inert atmosphere. This chemical can not expose to air.