3,5-DIMETHYL-2-ETHYLPYRAZINE

3,5-DIMETHYL-2-ETHYLPYRAZINE
  • CAS No.:13925-07-0
Other grades of this product :
3,5-DIMETHYL-2-ETHYLPYRAZINE Basic information
Product Name:3,5-DIMETHYL-2-ETHYLPYRAZINE
Synonyms:2-Ethyl-3,5-dimethylpyrazine;3,5-Dimethyl-2-ethylpyrazine;2-Ethyl-3,5(6)-dimethylpyrazine, 99%, mixture of isomers;2,6-dimethyl-3-ethyl-pyrazin;2-ethyl-3,5-dimethyl-pyrazin;3,5-dimethyl-2-ethyl-pyrazin;3-Ethyl-2,6-dimethylpyrazine;FEMA 3150
CAS:13925-07-0
MF:C8H12N2
MW:136.19
EINECS:237-694-1
Product Categories:Heterocycles;Heterocyclic Compounds
Mol File:13925-07-0.mol
3,5-DIMETHYL-2-ETHYLPYRAZINE Chemical Properties
Melting point 64-66 °C
Boiling point 182°C
density 0.96
refractive index 1.5015
FEMA 3149 | 2-ETHYL-3,(5 OR 6)-DIMETHYLPYRAZINE
Fp 182°C
storage temp. Sealed in dry,Room Temperature
pka2.73±0.10(Predicted)
Water Solubility Not miscible or difficult to mix in water. Soluble in alcohol, chloroform and dichloromethane.
JECFA Number776
EPA Substance Registry SystemPyrazine, 2-ethyl-3,5-dimethyl- (13925-07-0)
Safety Information
TSCA Yes
MSDS Information
3,5-DIMETHYL-2-ETHYLPYRAZINE Usage And Synthesis
Chemical PropertiesYellow Oil
OccurrenceReported found in the basic fractions of whiskey and rum, in roasted peanuts, in roasted barley, in coffee, filberts, potato and soy products, fried pork, cocoa, tea, oatmeal, asparagus, shrimps, clam, squid, grilled beef and wheaten bread
Uses3,5-Dimethyl-2-ethylpyrazine is an odorant of coffee brews.
PreparationBy alkylation of 2,6-dimethylpyrazine with ethyllithium
Aroma threshold values15 ppm in water
3,5-DIMETHYL-2-ETHYLPYRAZINE Preparation Products And Raw materials
Raw materials2,6-Dimethylpyrazine-->Ethyllithium
Preparation ProductsPyrazine-->2,3-Dimethylpyrazine

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