5-Methyl-2-acetylfuran Property

Melting point:

2 °C

Boiling point:

100-101 °C/25 mmHg (lit.)

Density 

1.066 g/mL at 25 °C (lit.)

vapor density 

>1 (vs air)

refractive index 

n20/D 1.512(lit.)

FEMA 

3609 | 2-ACETYL-5-METHYLFURAN

Flash point:

176 °F

storage temp. 

Inert atmosphere,Room Temperature

solubility 

Chloroform (Soluble), Methanol (Slightly)

form 

clear liquid

Specific Gravity

1.066

color 

Light yellow to Brown

Odor

at 0.10 % in dipropylene glycol. strong musty nutty hay coconut coumarin milky

Odor Type

nutty

Water Solubility 

Slightly soluble in water. Soluble in alcohol.

JECFA Number

1504

BRN 

110853

LogP

0.98

CAS DataBase Reference

1193-79-9(CAS DataBase Reference)

NIST Chemistry Reference

2-Acetyl-5-methylfuran(1193-79-9)

Safety

Hazard Codes 

Xn,Xi

Risk Statements 

22

Safety Statements 

36

RIDADR 

2810

WGK Germany 

3

RTECS 

LT8528000

Hazard Note 

Harmful

HazardClass 

6.1(b)

PackingGroup 

III

HS Code 

29321900

Toxicity

mouse,LD50,oral,438mg/kg (438mg/kg),Drug and Chemical Toxicology. Vol. 3, Pg. 249, 1980.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H227Combustible liquid

H301Toxic if swalloed

H302Harmful if swallowed

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P405Store locked up.

P501Dispose of contents/container to..…

5-Methyl-2-acetylfuran Chemical Properties,Usage,Production

Identification

Description

A light yellow liquid with strong, nutty aroma.

Usage

Reported uses (ppm): (FEMA, 1994)

Natural occurrence

Reported found in coffee, roasted filberts, tomato juice, raisin, roasted onion, French fried potato, crispbread, smoked fatty fish, boiled/cooked beef, fried cured pork, beer, cognac, rum, malt whiskey, cocoa, black tea, wild rice (Zizania aquatuca), and squid.

Chemical Properties

Colorless to light yellow liqui

Chemical Properties

A light yellow liquid with strong, nutty aroma.

Occurrence

Reported found in coffee, roasted filberts, tomato juice, raisin, roasted onion, French fried potato, crispbread, smoked fatty fish, boiled/cooked beef, fried cured pork, beer, cognac, rum, malt whiskey, cocoa, black tea, wild rice (Zizania aquatuca), and squid.

Uses

Glucose was transformed to various furan compounds and carboxylic acids derivatives by heat treatment of autoclave such as levulinic acid, 2-acetylfuran and 2-acetyl-5-methylfuran. using 2-acetyl-5-methylfuran or 1,5-dimethyl-2-pyrrolecarbonitrile as reactants, that the formation of the 4-arylation products. Reaction of 2-acetyl-5-methylfuran 6a with 2-aminoethanol pioduced in 79% yield the aminal.

Definition

ChEBI: A furan carrying acetyl and methyl substituents at the 2- and 5-positions respectively.

Taste threshold values

Taste characteristics at 50 ppm: nutty, cocoa-like with toasted, bready nuance

General Description

s-cis-trans isomerism of 2-acetyl-5-methylfuran was investigated by IR and NMR spectroscopy.