2′,4′-Dimethylacetophenone

2′,4′-Dimethylacetophenone Basic information
Product Name:2′,4′-Dimethylacetophenone
Synonyms:4-ACETYL-M-XYLENE;2,4-Dimethyl-5-acetalthiazole;Acetyl-m-xylene;2,4-DIMETHYLACETOPHENONE FOR SYNTHESIS;DiMethylacetophenone;1-(2,4-Dimethylphenyl)ethan-1-one, 4-Acetyl-m-xylene;1-(2,4-DIMETHYLPHENYL)ETHAN-1-ONE;2′,4′-DIMETHYLACETOPHENONE
CAS:89-74-7
MF:C10H12O
MW:148.2
EINECS:201-935-9
Product Categories:C10;Carbonyl Compounds;Ketones;Alphabetical Listings;C-D;Flavors and Fragrances;thiazole Flavor;Aromatic Acetophenones & Derivatives (substituted);FINE Chemical & INTERMEDIATES
Mol File:89-74-7.mol
2',4'-Dimethylacetophenone Structure
2′,4′-Dimethylacetophenone Chemical Properties
Melting point 22.95°C
Boiling point 117-118 °C18 mm Hg(lit.)
density 0.997 g/mL at 25 °C(lit.)
refractive index n20/D 1.535(lit.)
FEMA 2387 | 2,4-DIMETHYLACETOPHENONE
Fp 212 °F
storage temp. Store below +30°C.
solubility Chloroform (Soluble), Methanol (Slightly)
form clear liquid
color White to Yellow to Green
Odorat 10.00 % in dipropylene glycol. floral woody sweet mimosa minty
Odor Typefloral
JECFA Number809
BRN 956772
LogP2.59
CAS DataBase Reference89-74-7(CAS DataBase Reference)
NIST Chemistry Reference2,4-(CH3)2C6H3-COCH3(89-74-7)
EPA Substance Registry SystemEthanone, 1-(2,4-dimethylphenyl)- (89-74-7)
Safety Information
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
MSDS Information
ProviderLanguage
1-(2,4-Dimethylphenyl)ethan-1-oneEnglish
SigmaAldrichEnglish
ACROSEnglish
ALFAEnglish
2′,4′-Dimethylacetophenone Usage And Synthesis
Chemical Properties2,4-Dimethylacetophenone has a sweet, floral, woody, minty odor.
Chemical PropertiesCLEAR COLORLESS TO VERY SLIGHTLY YELLOW LIQUID
OccurrenceReported found in cinnamon bark, wine, tea, watercress and dried bonito.
Uses2′,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.
PreparationBy condensation of acetylchloride and m-xylene in the presence of aluminum chloride or in the presence of ferric chloride
Aroma threshold valuesAroma 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 valuesTaste 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
2′,4′-Dimethylacetophenone Preparation Products And Raw materials
Raw materialsm-Xylene
Preparation Products5-(2,4-DIMETHYL-PHENYL)-3H-THIENO[2,3-D]PYRIMIDIN-4-ONE–>1-ETHYNYL-2,4-DIMETHYL-BENZENE–>2-AMINO-4-(2,4-DIMETHYL-PHENYL)-THIOPHENE-3-CARBOXYLIC ACID ETHYL ESTER–>2-bromomethyl-4-methyl-benzoic acid methyl ester–>2,6-DIMETHYLACETOPHENONE–>(2E)-1-(2,4-dimethylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one–>2-(2,4-dimethylphenyl)quinoline-4-carbonyl chloride–>1-(2,4-DIMETHYL-PHENYL)-ETHYLAMINE

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