delta-Nonalactone

Synonym(s):5-Hydroxynonanoic acid, lactone

CAS NO.：3301-94-8
Empirical Formula: C9H16O2
Molecular Weight: 156.22
MDL number: MFCD00036500
EINECS: 221-974-5
SAFETY DATA SHEET (SDS)
Update Date: 2024-11-20 17:10:30

What is delta-Nonalactone?

Description

Hydroxynonanoic acid, δ-lactone has a mild, nut-like odor and a fatty, milk-creamy taste. May be prepared by microbiological reduction of the corresponding keto acids, by a patented process.

Chemical properties

Hydroxynonanoic acid, δ-lactone has a mild, nut-like odor and a fatty, milk-creamy taste

Occurrence

Reported as responsible for the off-flavor in milk fat. Also found in melon, butter, chicken fat, grilled beef, cured pork, pork fat and liver, beer, malt and bourbon whiskey, cognac, rum, white wine, black tea, asparagus, mango, starfruit, mountain papaya and cooked shrimps

The Uses of delta-Nonalactone

Suggested uses are in curry, nut, tomato, tropical, caramel and dairy flavors. In fragrance applications, this compound delivers apricot, butter, grape, passion fruit, plum, tea green and tobacco notes.

Definition

ChEBI: 6-Butyltetrahydro-2H-pyran-2-one is a delta-lactone.

Preparation

By microbiological reduction of the corresponding keto acids; by a patented process

Taste threshold values

Taste characteristics at 10 ppm: creamy, coconut, lactonic, sweet and dairy-like with milky nuances.

Properties of delta-Nonalactone

Melting point:	-26°C
Boiling point:	115-116 °C2 mm Hg(lit.)
Density	0.893 g/mL at 25 °C(lit.)
vapor pressure	0.41-0.75Pa at 20-25℃
FEMA	3356 \| HYDROXYNONANOIC ACID, DELTA-LACTONE
refractive index	n20/D 1.455(lit.)
Flash point:	112 °F
storage temp.	Sealed in dry,Room Temperature
form	Liquid
color	Colorless to Almost colorless
Specific Gravity	0.99
Odor	at 100.00 %. coconut creamy sweet milky coumarin
JECFA Number	230
BRN	114460
CAS DataBase Reference	3301-94-8(CAS DataBase Reference)
NIST Chemistry Reference	«DELTA» nonalactone(3301-94-8)
EPA Substance Registry System	2H-Pyran-2-one, 6-butyltetrahydro- (3301-94-8)

Safety information for delta-Nonalactone

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02
GHS Hazard Statements	H225:Flammable liquids
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P403+P235:Store in a well-ventilated place. Keep cool.