4-Hexanolide Chemical Properties
- Melting point:
- Boiling point:
- 219 °C(lit.)
- 1.023 g/mL at 25 °C(lit.)
- 2556 | GAMMA-HEXALACTONE
- refractive index
- Flash point:
- 209 °F
- storage temp.
- Store below +30°C.
- Specific Gravity
- JECFA Number
- CAS DataBase Reference
- 695-06-7(CAS DataBase Reference)
- NIST Chemistry Reference
- 2(3H)-Furanone, 5-ethyldihydro-(695-06-7)
- EPA Substance Registry System
- 2(3H)-Furanone, 5-ethyldihydro- (695-06-7)
4-Hexanolide Usage And Synthesis
gamma-Hexalactone has a warm, powerful, herbaceous, sweet odor and a sweet, coumarin-caramel taste. May be prepared by reduction of sorbic acid using Zn, Sn, or SnCl2 and concentrated HCL in acetic acid solution at 85°C; from ethylene oxide and sodio-malonic ester; also from propyl alcohol and methylacrylate in the presence of di-tert-butyl peroxide.
γ-Hexalactone has a sweet, herbaceous, warm, powerful, odor, with a sweet, coumarin-caramel taste. This compound is also described to have odor as sweet, creamy, lactonic, tobacco and coumarin-like with green coconut nuances.
4-Hexanolide is clear colorless liquid
Reported found in apple juice, apricot, orange juice, guava, raisin, papaya, peach, pineapple, berries, asparagus, peas, potato, tomato, breads, cheeses, butter, milk, chicken fat, cooked beef, cooked pork, beer, cognac, grape wines, cocoa, tea, filberts, pecans, passion fruit, Japanese plum, beans, mushroom, starfruit, mango, dried fig, prickly pear, licorice, soursop, Cape gooseberry, nectarines, quince, pawpaw and other sources.
4-Hexanolide was used as curing agent for diglycidyl ether of bisphenol A with ytterbium triflate as an initiator.
4-Hexanolide is a gamma-lactone that is oxolan-2-one substituted by an ethyl group at position 5.
By reduction of sorbic acid using Zn, Sn or SnCl2 and concentrated HCl in acetic acid solution at 85°C; from ethylene oxide and sodio-malonic ester; also from propyl alcohol and methylacrylate in the presence of di-tert-butyl peroxide
Aroma threshold values
Detection: 1.6 ppm
Taste threshold values
Taste characteristics at 75 ppm: sweet, creamy, vanilla-like with green lactonic powdery nuances
Tetrahedron Letters, 28, p. 2111, 1987 DOI: 10.1016/S0040-4039(00)96056-8
4-Hexanolide Preparation Products And Raw materials
- (+)-CAMPHANIC ACID CHLORIDE
- gamma-Octanoic lactone
- ALPHA,BETA-GLUCOOCTANOIC GAMMA-LACTONE
- (1R)-(+)-CAMPHANIC ACID
- D-(-)-Gulonic acid gamma-lactone
- POLYCAPROLACTONE AVERAGE MN CA. 42 500
- (-)-Corey lactone diol
- Diethyl ether
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