ethyl dimethyl pyrazine
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IUPAC name :5-ethyl-2,3-dimethylpyrazine
InChI :InChI=1/C8H12N2/c1-4-8-5-9-6(2)7(3)10-8/h5H,4H2,1-3H3
InChIKey :CIBKSMZEVHTQLG-UHFFFAOYAD
SMILES :CCC1=CN=C(C(=N1)C)C
cas number :15707-34-3
fema number :4434
molar refractivity :41.63 ± 0.3 cm3
parachor :347.4 ± 4.0 cm3
index of refraction :1.501 ± 0.02
surface tension :36.6 ± 3.0 dyne/cm
density :0.964 ± 0.06 g/cm3
polarizability :16.50 ± 0.5 10-24cm3
XlogP : 1.20
molecular weight : 136.1942800 (IUPAC)
formula :C8 H12 N2
pherobase floral:view
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :unspecified

Suppliers :
Hofmen :2,3-Dimethyl-5-ethylpyrazine
Penta :2,3-dimethyl-5-ethyl pyrazine

organoleptics :
odor type :burnt
odor description:
burnt popcorn

properties :
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
boiling point : 188.00 to 190.00 °C. @ 760.00 mm Hg
flash point : 159.00  °F.  TCC  ( 70.56 °C. )
logP (o/w) : 1.63

safety :
Oral Toxicity(LD50) : 
  Not determined
Dermal Toxicity(LD50) : 
  Not determined
Inhalation Toxicity(LC50) : 
  Not determined
 

safety in use :
Category :flavoring agents
 
recommendation for ethyl dimethyl pyrazine fragrance usage levels up to :
 not for fragrance use.
 
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA on the "LIBRARY" link.
publication number : 24
 average usual ppmaverage maximum ppm
baked goods : 3.100006.00000
beverages(nonalcoholic) : 1.900002.50000
beverages(alcoholic) : 0.300001.00000
breakfast cereal : --
cheese : --
chewing gum : --
condiments / relishes : --
confectionery froastings : --
egg products : --
fats / oils : --
fish products : --
frozen dairy : 1.700003.60000
fruit ices : --
gelatins / puddings : 1.100002.30000
granulated sugar : --
gravies : --
hard candy : --
imitation dairy : --
instant coffee / tea : --
jams / jellies : --
meat products : 2.000004.00000
milk products : --
nut products : --
other grains : --
poultry : --
processed fruits : --
processed vegetables : --
reconstituted vegetables : --
seasonings / flavors : --
snack foods : --
soft candy : 2.900006.00000
soups : --
sugar substitutes : --
sweet sauces : --

safety references :
EPI System :view
 
 
 
 
5-ethyl-2,3-dimethylpyrazine
chemidplus :015707343
EPA Substance Registry Services :15707-34-3

references :
 
5-ethyl-2,3-dimethylpyrazine
NIST Chemistry WebBook :4273123828
pubchem :170054
Flavornet :15707-34-3

other :
VCF-Online: VCF Volatile Compounds in Food
synonyms :
2,3-dimethyl-5-ethyl pyrazine
5-ethyl-2,3-dimethyl pyrazine
5-ethyl-2,3-dimethylpyrazine
2-ethyl-5,6-dimethyl pyrazine
2-ethyl-5,6-dimethylpyrazine

soluble in :
 alcohol

insoluble in :
 water

potential blenders :    note
2-acetyl pyrazineFL/FR
2-acetyl pyridineFL/FR
3-acetyl pyridineFL/FR
2-acetyl thiazoleFL/FR
2-acetyl-3-ethyl pyrazineFL
2-acetyl-3,5(or 6)-dimethyl pyrazineFL/FR
2-acetyl-5-methyl pyrazineFL
2-acetyl-6-methyl pyrazineFL
 ethyl dimethyl pyrazineFL
 popcorn pyrimidineFL/FR
2-propionyl pyrroleFL
2-propionyl thiazoleFL

natural occurrence in :    note
 freesia refracta var. armstrongii S

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