coffee pyrazine
 
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IUPAC name :2-ethyl-5-methylpyrazine
InChI :InChI=1/C7H10N2/c1-3-7-5-8-6(2)4-9-7/h4-5H,3H2,1-2H3
InChIKey :OXCKCFJIKRGXMM-UHFFFAOYAK
SMILES :CCC1=NC=C(N=C1)C
(EINECS) number :236-416-6
cas number :13360-64-0
beilstein number :0956719
fema number :3154
coe number :728
jecfa number :770
fl. number :14.017
molar refractivity :36.80 ± 0.3 cm3
parachor :309.8 ± 4.0 cm3
index of refraction :1.500 ± 0.02
surface tension :37.7 ± 3.0 dyne/cm
density :0.977 ± 0.06 g/cm3
polarizability :14.59 ± 0.5 10-24cm3
xlogp : 0.90
molecular weight : 122.1677000
formula :C7 H10 N2
 
 
export tariff code :unspecified
fda reg :unspecified
 

Suppliers :

organoleptics :
odor type :coffee
odor strength :high ,
recommend smelling in a 0.10 % solution or less
odor description :
at 0.10 % in propylene glycol.  
coffee bean

properties :
appearence :colorless to pale yellow clear liquid
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.96000 to 0.97000 @ 25.00 °C.
pounds per gallon - calc. : 7.988 to 8.071
refractive index :1.49100 to 1.50100 @ 20.00 °C.
boiling point : 79.00 to 80.00 °C. @ 50.00 mm Hg
logp : 1.17

safety :
Oral Toxicity(LD50) : Gavage-Rat    900.00  mg/kg    (Moran et al., 1980)
Dermal Toxicity(LD50) : Not determined
Maximised Survey-derived Daily Intakes (MSDI-EU) :4.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA) :1.00 (μg/capita/day)
flash point ( Deg. F. ) : 143.00  °F.  TCC  ( 61.67 °C. )
recommendation for coffee pyrazine usage levels up to :
 not for fragrance use.
recommendation for coffee pyrazine usage levels up to :
  5.0000 ppm in the flavor.

safety links :
 
 
(EINECS) number :236-416-6
RTECS :UQ3335500 for 13360-64-0
chemidplus :013360640
EPA Substance Registry Services :13360-64-0
NLM Chemical Carcinogenesis Research Information System :13360-64-0
NLM Developmental and Reproductive Toxicity :13360-64-0
NLM Env. Mutagen Info. Center :13360-64-0
NLM GENetic TOXicology :13360-64-0
EPI System :view

other :

references :
jecfa number :770
fl. number :14.017
pubchem :168675
NIST Chemistry WebBook :2139321707
synonyms :
 coffee pyrazine
2-ethyl-5-methyl pyrazine
2-ethyl-5-methylpyrazine
2-methyl-5-ethyl pyrazine
2-methyl-5-ethylpyrazine

soluble in :
 alcohol

insoluble in :
 water

(odor and/or flavor) blends with :
2-acetyl furan
2-acetyl pyrazine
 acetyl pyrroline
2-acetyl-3-methyl pyrazine
 benzothiazole
 benzyl mercaptan
 butyl mercaptan
 caramel furanone
 cocoa pyrazine
3,6-cocoa pyrazine
 coffee difuran
 coffee dione
 dicyclohexyl disulfide
 difurfuryl ether
 difurfuryl sulfide
6,7-dihydro-2,3-dimethyl-5H-cyclopentapyrazine
 diisoamyl thiomalate
 dimethyl dihydrocyclopentapyrazine
2,3-dimethyl pyrazine
2,5-dimethyl pyrazine
2,6-dimethyl pyrazine
2,4-dimethyl thiazole
2,5-dimethyl thiazole
4,5-dimethyl thiazole
4,5-dimethyl-2-ethyl-3-thiazoline
2,5-dimethyl-3-thiofuroyl furan
2-ethoxythiazole
 ethyl 3-(furfuryl thio) propionate
 ethyl methyl sulfide
S-ethyl thioacetate
2-ethyl-3,5(6)-dimethyl pyrazine mixture
 filbert heptenone
 furfuryl alcohol
 furfuryl isopropyl sulfide
 furfuryl mercaptan
 furfuryl methyl ether
 furfuryl propionate
1-furfuryl pyrrole
 furfuryl thioacetate
S-furfuryl thioformate
 furfuryl thiopropionate
2-heptyl furan
1-hydroxy-2-butanone
 menthofuran
 methyl 2-(methyl thio) acetate
2-methyl 3-(methyl thio) furan 10% in triacetin
2-methyl 5-(methyl thio) furan
2-methyl butyraldehyde
 methyl cyclopentenolone
 methyl furfuryl disulfide
2-methyl quinoxaline
5-methyl quinoxaline
2-methyl thio-3,5 or 6-methyl pyrazine
2-methyl-3-,5 or 6-(furfuryl thio) pyrazine
2-methyl-5-isopropyl pyrazine
 nutty quinoxaline
2-propionyl-2-thiazoline
 sulfuryl butyrate
 sulfuryl decanoate
 sulfuryl formate
 sulfuryl hexanoate
 sulfuryl isobutyrate
 sulfuryl octanoate
 sulfuryl propionate
2,3,5,6-tetramethyl pyrazine
2-thienyl mercaptan
2-thiophene thiol
2,4,5-trimethyl thiazole
2,6-xylenol

(odor and/or flavor) used in :
 coffee
 grass
 nut

natural occurrence in :
data pagelavender oil spike spain @ 0.015%



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Html Last modified 11/23/2008