Delta Undecalactone

Product Name:

Undecanolactone

Synonyms:

2H-Pyran-2-one, 6-hexyltetrahydro-;2H-Pyran-2-one, tetrahydro-3-hexyl-;5-Hydroxyundecanoic acid lactone;5-hydroxy-undecanoicacidelta-lactone;5-hydroxyundecanoicacidlactone;6-hexyltetrahydro-2h-pyran-2-on;beta-Undecalactone;delta-Hexyl-delta-valerolactone

CAS:

710-04-3

MF:

C11H20O2

MW:

184.28

EINECS:

211-915-1

Product Categories:

Carbonyl Compounds;Lactones;Organic Building Blocks

Mol File:

710-04-3.mol

alpha 

0°(25℃, neat)

Boiling point 

152-155 °C10.5 mm Hg(lit.)

density 

0.969 g/mL at 25 °C(lit.)

FEMA 

3294 | 5-HYDROXYUNDECANOIC ACID LACTONE

refractive index 

n20/D 1.459(lit.)

Fp 

>230 °F

Specific Gravity

0.9620.969

JECFA Number

234

CAS DataBase Reference

710-04-3(CAS DataBase Reference)

NIST Chemistry Reference

Undecanolactone(710-04-3)

EPA Substance Registry System

2H-Pyran-2-one, 6-hexyltetrahydro- (710-04-3)

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-37/39

WGK Germany 

2

RTECS 

UQ1320000

Provider

Language

SigmaAldrich

English

Chemical Properties

Colorless to light-yellow liquid; peachlike odor. Soluble in 4–5 volumes of 60% alcohol; soluble in benzyl alcohol, benzyl benzoate, and most fixed oils. Combustible.

Chemical Properties

Δ-Undecalactone has a creamy, peach-like aroma.

Occurrence

Reported found in coconut flavor, melon, blackberry, blueberry, heated butter, milk, milk powder, cream, coconut meat and starfruit.

Uses

Perfumery, flavoring agent.

Preparation

By intramolecular Cannizzaro-type rearrangement of 2-hexylglutaraldehyde.

Aroma threshold values

Detection: 150 ppb

Taste threshold values

Taste characteristics at 10 ppm: creamy, coconut, milky, creamy, lactonic and butter fat with a waxy, fruity nuance.

Raw materials

Caproaldehyde