2',4'-Dimethylacetophenone Property

Melting point:

22.95°C

Boiling point:

117-118 °C18 mm Hg(lit.)

Density 

0.997 g/mL at 25 °C(lit.)

FEMA 

2387 | 2,4-DIMETHYLACETOPHENONE

refractive index 

n20/D 1.535(lit.)

Flash point:

212 °F

storage temp. 

Store below +30°C.

solubility 

Chloroform (Soluble), Methanol (Slightly)

form 

clear liquid

color 

White to Yellow to Green

Odor

at 10.00 % in dipropylene glycol. floral woody sweet mimosa minty

Odor Type

floral

JECFA Number

809

BRN 

956772

LogP

2.59

CAS DataBase Reference

89-74-7(CAS DataBase Reference)

NIST Chemistry Reference

2,4-(CH3)2C6H3-COCH3(89-74-7)

EPA Substance Registry System

Ethanone, 1-(2,4-dimethylphenyl)- (89-74-7)

Safety

Hazard Codes 

Xn,Xi

Risk Statements 

36-20/22

Safety Statements 

39-26-24/25

WGK Germany 

2

Hazard Note 

Irritant/Harmful

TSCA 

Yes

HS Code 

29143990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

2',4'-Dimethylacetophenone Chemical Properties,Usage,Production

Uses in Perfume

2',4'-Dimethylacetophenone can be used in perfume compositions for New Mown Hay, Fougere, Clover, Mimosa and other floral and non-floral perfumes, mainly in soap and detergent perfumes, room sprays, etc.
Finds a little use in flavor compositions for imitation Grape, in Vanilla flavors, Creamsoda compositions, etc.

Chemical Properties

2,4-Dimethylacetophenone has a sweet-floral, woody odor, rather pungent in the pure state, but almost Mimosa-like in extreme dilution or in proper composition with other perfume chemicals.

Chemical Properties

CLEAR COLORLESS TO VERY SLIGHTLY YELLOW LIQUID

Occurrence

Reported found in cinnamon bark, wine, tea, watercress and dried bonito.

Uses

2',4'-DIMETHYLACETOPHENONE (cas# 89-74-7) is a useful research chemical. This compound can be used to detect aldosterone aroma in tobacco compounds using Gas Chromatography. It can also be used for protecting food products.

Preparation

By condensation of acetylchloride and m-xylene in the presence of aluminum chloride or in the presence of ferric chloride

Aroma threshold values

Aroma characteristics at 1.0%; sweet chemical, slightly fruity cherry and powdery coumarin like, anisic, slightly camphoraceous with a slightly camphoraceous with a hint of coconut

Taste threshold values

Taste characteristics at 5 ppm: naphthyl phenolic, coumarin, coconut, oily and chemical.

Synthesis Reference(s)

The Journal of Organic Chemistry, 46, p. 2974, 1981 DOI: 10.1021/jo00327a028