2,3,5,6-tetramethyl pyrazine
 
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IUPAC name :2,3,5,6-tetramethylpyrazine
InChI :InChI=1/C8H12N2/c1-5-6(2)10-8(4)7(3)9-5/h1-4H3
InChIKey :FINHMKGKINIASC-UHFFFAOYAV
SMILES :CC1=C(N=C(C(=N1)C)C)C
(EINECS) number :214-391-2
cas number :1124-11-4
fema number :3237
coe number :734
jecfa number :780
fl. number :14.018
molar refractivity :41.73 ± 0.3 cm3
parachor :346.1 ± 4.0 cm3
index of refraction :1.503 ± 0.02
surface tension :36.3 ± 3.0 dyne/cm
density :0.966 ± 0.06 g/cm3
polarizability :16.54 ± 0.5 10-24cm3
xlogp : 1.30
molecular weight : 136.1942800
formula :C8 H12 N2
BioActivity Analysis :8139962
 
 
fda reg :unspecified h. number :2933.90
organoleptics : 
odor type :nutty
odor strength :high ,
recommend smelling in a 1.00 % solution or less
odor description :
at 1.00 % in dipropylene glycol.  
musty nutty chocolate coffee cocoa soybean lard burnt
taste description³ :at 150.00 ppm.  
Nutty, musty, cocoa, drying, peanut-like and raw coffee notes
properties : 
appearence :white crystals
assay : 98.00 - 100.00 %   
Food Chemicals Codex Listed :Yes
melting point : 85.00 - 90.00 °C. @ 760.00 mm Hg
boiling point : 190.00 °C. @ 760.00 mm Hg
logp : 1.28
safety : 
most important hazard(s) : Xn - Harmful.
  
Oral Toxicity(LD50) : Oral-Rat    1910.00  mg/kg  DCTODJ  3,249,1980
Dermal Toxicity(LD50) : Not determined
  
flash point ( Deg. F. ) :> 200.00  °F.  TCC  ( > 93.33 °C. )
  
recommendation for 2,3,5,6-tetramethyl pyrazine usage levels up to :
  0.6000 % in the fragrance concentrate.
  
recommendation for 2,3,5,6-tetramethyl pyrazine usage levels up to :
  150.0000 ppm in the flavor.
  
safety links : 
(EINECS) number :214-391-2
rtecs :UQ3905000 for 1124-11-4
chemidplus :001124114
epa-srs :1124-11-4
dtp/nci :46451
  
other : 
 
references : 
pubchem :157583
NIST Chemistry WebBook :2346072466
  
reference : Mosciano, Gerard P&F 22, No. 2, 69, (1997)³
synonyms :
 tetramethyl pyrazine
2,3,5,6-tetramethyl pyrazine
 tetrapyrazine
soluble in :
 alcohol
 fixed oils
 propylene glycol
 water, 7010 mg/L @ 25C
stability :
 alcoholic fine fragrance, good
 antiperspirant, good
 fabric softener, good
 hypochlorite bleach, poor
 liquid detergent, good
 perborate powder detergent, good
 soap, good
 toiletry application, good
(odor and/or flavor) used in :
 chocolate cocoa
 coffee
 galbanum
 guava
 lard
 nut filbert
 nut macadamia
 nut peanut
 soybean
 sugar brown sugar
 tea green tea
natural occurrence in :
beef roasted beef
cheese cheddar cheese
cocoa products
coffee
dairy products
egg boiled egg
filbert
galbanum
guava
macadamia nut
meat
peanut
rum
shrimp
soy products
tea green tea
whiskey



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