Natural Gamma Octalactone

Product Name:

Natural gamma octalactonene

Synonyms:

GAMMA-OCTANOLACTONE;FEMA 2796;OCTALACTONE, GAMMA-;Octanolide-1,4;OCTANO-1,4-LACTONE;2(3H)-Furanone, 5-butyldihydro-;2(3H)-Furanone, dihydro-5-butyl-;4-Butyl-gamma-butyrolactone

CAS:

104-50-7

MF:

C8H14O2

MW:

142.2

EINECS:

203-208-1

Mol File:

104-50-7.mol

Melting point 

91 °C(Solv: ethanol (64-17-5))

Boiling point 

234 °C(lit.)

density 

0.981 g/mL at 25 °C(lit.)

FEMA 

2796 | GAMMA-OCTALACTONE

refractive index 

n20/D 1.444(lit.)

Fp 

>230 °F

form 

Liquid

color 

Clear colorless

Odor

coconut odor

JECFA Number

226

InChIKey

IPBFYZQJXZJBFQ-UHFFFAOYSA-N

CAS DataBase Reference

104-50-7(CAS DataBase Reference)

NIST Chemistry Reference

2(3H)-furanone, 5-butyldihydro-(104-50-7)

EPA Substance Registry System

2(3H)-Furanone, 5-butyldihydro- (104-50-7)

Hazard Codes 

Xi

Risk Statements 

38

Safety Statements 

26-37/39-36/37/39

WGK Germany 

1

RTECS 

LU3562000

TSCA 

Yes

HS Code 

29322090

Toxicity

LD50 orl-rat: 4400 mg/kg FCTXAV 14,821,76

Chemical Properties

γ-Octalactone has a fruity odor reminiscent of coconut and a very sweet taste.

Chemical Properties

CLEAR COLOURLESS LIQUID

Chemical Properties

gamma-Octanoic lactone occurs as an aroma constituent in many processed and unprocessed foods. It is a pale yellow liquid with a fruity/coconut-like odor and is used both in aroma compositions and in heavy blossom perfumes.

Occurrence

Reported found in apricot, peach, blue cheese, butter, cooked chicken and cooked pork, licorice, milk, raspberry, roasted barley, and roasted filbert.

Uses

(Gamma)-Octalactone is a synthetic flavoring agent that is a stable, colorless to slightly yellow liquid of peach odor. It should be stored in glass or tin containers. It is used in flavors for peach with applications in baked goods, candy, and ice cream at 5–17 ppm.

Aroma threshold values

Detection: 7 ppb; aroma characteristics at 1.0%: sweet, fatty, creamy, coconut, lactonic and coumarinic.

Taste threshold values

Taste characteristics at 1 to 10 ppm: coconut, fatty, creamy, coumarinic, with a strong creamy and waxy mouthfeel.

Safety Profile

Mildly toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

Chemical Synthesis

Prepared synthetically from epoxy-1,2-hexane and sodio-malonic ester; after saponification, the oxyacid is extracted with ether and is lactonized.