EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes
 

2-isobutyl-3,5-(and 3,6)-dimethyl pyrazine
3,5- and 3,6-dimethyl-2-isobutylpyrazine

Supplier Sponsors

CAS Number: 38888-81-2
Molecular Weight:164.25152000
Formula:C10 H16 N2
Also Contains:2-isobutyl-3,5-dimethyl pyrazine 48.00% to 50.00%
 2-isobutyl-3,6-dimethyl pyrazine 48.00% to 50.00%
EFSA/JECFA Comments:3,5-isomer (48-50%); 3,6-isomer (48-50%)
Category:flavor and fragrance agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
JECFA Food Flavoring:2130 3,5- and 3,6-dimethyl-2-isobutylpyrazine
FEMA Number:4100 3,5- and 3,6-dimethyl-2-isobutylpyrazine
FDA:No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm (SATF): 3,5- AND 3,6-DIMETHYL-2-ISOBUTYLPYRAZINE
 
Physical Properties:
Appearance:colorless clear liquid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:0.92400 to 0.93400 @ 25.00 °C.
Pounds per Gallon - (est).: 7.689 to 7.772
Refractive Index:1.48900 to 1.49400 @ 20.00 °C.
Boiling Point: 73.00 to 75.00 °C. @ 2.00 mm Hg
Soluble in:
 alcohol
Insoluble in:
 water
 
Organoleptic Properties:
Odor Type: cocoa
Odor Strength:high ,
recommend smelling in a 0.10 % solution or less
cocoa hazelnut musty earthy roasted nutty
Odor Description:at 0.10 % in dipropylene glycol. cocoa hazelnut musty earthy roasted nutty
Odor and/or flavor descriptions from others (if found).
 
Cosmetic Information:
None found
 
Suppliers:
Aston Chemical
For experimental / research use only.
Pyrazine, dimethyl(2-methylpropyl)-
BOC Sciences
For experimental / research use only.
3,5,6-Dimethyl-2-isobutylpyrazine
Jiangyin Healthway
3,5,6-Dimethyl-2-isobutylpyrazine
New functional food ingredients
Penta International
3,5,6-DIMETHYL-2-ISOBUTYLPYRAZINE
Synerzine
2-isobutyl-3,5-(and 3,6)-Dimethylpyrazine
 
Safety Information:
 
Hazards identification
 
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
 
Safety in Use Information:
Category: flavor and fragrance agents
Recommendation for 2-isobutyl-3,5-(and 3,6)-dimethyl pyrazine usage levels up to:
  0.3000 % in the fragrance concentrate.
 
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 Flavor Ingredient Library
publication number: 22
 average usual ppmaverage maximum ppm
baked goods: 1.500002.00000
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: 1.500002.00000
cheese: --
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: --
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: --
milk products: 2.000003.00000
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: 0.500001.50000
reconstituted vegetables: --
seasonings / flavors: 5.0000010.00000
snack foods: --
soft candy: --
soups: 0.500001.50000
sugar substitutes: --
sweet sauces: 2.000003.00000
 
Safety References:
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
Chemidplus:0038888812
 
References:
Pubchem (sid):135277735
 
Other Information:
HMDB (The Human Metabolome Database):Search
FooDB:FDB009317
VCF-Online:VCF Volatile Compounds in Food
 
Potential Blenders and core components note
For Odor
amber
alpha-
ambrinol
FL/FR
balsamic
2-
acetyl furan
FL/FR
amyl cinnamate
FL/FR
iso
amyl cinnamate
FL/FR
butyl cinnamate
FL/FR
camphoreous
butyrophenone
FL/FR
caramellic
fenugreek oleoresin
FL/FR
chocolate
iso
amyl phenyl acetate
FL/FR
chocolate pyrazine A
FL/FR
cocoa hexenal
FL/FR
cocoa oleoresin
FL/FR
cocoa pentenal
FL/FR
2,5-
dimethyl pyrazine
FL/FR
2,6-
dimethyl pyrazine
FL/FR
2-
methoxy-3-methyl pyrazine
FL/FR
2-
methoxypyrazine
FL/FR
2-
methyl butyraldehyde
FL/FR
2,4,5-
trimethyl thiazole
FL/FR
earthy
geosmin
FL/FR
1-
octen-3-one
FL/FR
ethereal
iso
propyl formate
FL/FR
fermented
3-
methyl-1-pentanol
FL/FR
floral
ethyl phenyl acetate
FL/FR
2-
methyl-4-phenyl butanal
FL/FR
fruity
nonyl isovalerate
FL/FR
green
butyl 2-methyl butyrate
FL/FR
phenyl acetaldehyde
FL/FR
herbal
gamma-
valerolactone
FL/FR
honey
butyl phenyl acetate
FL/FR
milky
laevo-
glutamine
CS
musty
cocoa butenal
FL/FR
hazelnut pyrazine
FL/FR
nutty
2-
acetyl-3,5-dimethyl pyrazine
FL/FR
2-
acetyl-3,5(or 6)-dimethyl pyrazine
FL/FR
3,6-
cocoa pyrazine
FL/FR
2,6-
lutidine
FL/FR
2-
methyl pyrazine
FL/FR
2-
methyl-3-ethoxypyrazine
FL/FR
2-
methyl-3-pentenoic acid
FL/FR
2,3,5,6-
tetramethyl pyrazine
FL/FR
2,3,5-
trimethyl pyrazine
FL/FR
vinyl sulfurol
FL/FR
popcorn
2-
acetyl pyrazine
FL/FR
2-
acetyl thiazole
FL/FR
roasted
fenugreek resinoid
FL/FR
spicy
ginger oleoresin
FL/FR
sweet
vanilla oleoresin bali
FL/FR
waxy
phenethyl octanoate
FL/FR
For Flavor
No flavor group found for these
butyl 2-methyl butyrate
FL/FR
butyl cinnamate
FL/FR
2(4)-iso
butyl-4(2),6-dimethyl dihydro-4H-1,3,5-dithiazine
FL
butyrophenone
FL/FR
chocolate pyrazine A
FL/FR
4,5-
dimethyl-2-ethyl thiazole
FL
geosmin
FL/FR
2-
methoxypyrazine
FL/FR
2-
methyl-3-ethoxypyrazine
FL/FR
2-
methyl-3-pentenoic acid
FL/FR
2-
methyl-4-phenyl butanal
FL/FR
nonyl isovalerate
FL/FR
peanut dithiazine
FL
2-iso
propyl-4-methyl-3-thiazoline
FL
amber
amber
alpha-
ambrinol
FL/FR
balsamic
amyl cinnamate
FL/FR
bitter
2-
acetyl-5-methyl pyrrole
FL
methyl ethoxypyrazine
FL
brown
fenugreek oleoresin
FL/FR
caramellic
fenugreek resinoid
FL/FR
chocolate
cocoa oleoresin
FL/FR
cocoa propanal
FL
cocoa
butyraldehyde
FL
cocoa hexenal
FL/FR
corn chip
2-
acetyl thiazole
FL/FR
earthy
1-
octen-3-one
FL/FR
floral
iso
amyl cinnamate
FL/FR
iso
amyl phenyl acetate
FL/FR
cocoa pentenal
FL/FR
fruity
phenethyl octanoate
FL/FR
iso
propyl formate
FL/FR
fusel
2-
methyl butyraldehyde
FL/FR
green
cocoa butenal
FL/FR
2-
ethyl butyraldehyde
FL
honey
butyl phenyl acetate
FL/FR
ethyl phenyl acetate
FL/FR
phenyl acetaldehyde
FL/FR
musty
2,5-
dimethyl pyrazine
FL/FR
hazelnut pyrazine
FL/FR
2,3,5-
trimethyl pyrazine
FL/FR
nutty
2-
acetyl furan
FL/FR
2-
acetyl-3,5-dimethyl pyrazine
FL/FR
2-
acetyl-3,5(or 6)-dimethyl pyrazine
FL/FR
3,6-
cocoa pyrazine
FL/FR
2,5-
diethyl-3-methyl pyrazine
FL
2,6-
dimethyl pyrazine
FL/FR
2,4-
dimethyl-5-vinyl thiazole
FL
european
hazelnut oleoresin
FL
2,6-
lutidine
FL/FR
2-
methoxy-3-methyl pyrazine
FL/FR
2-
methyl pyrazine
FL/FR
2,3,5,6-
tetramethyl pyrazine
FL/FR
2,4,5-
trimethyl thiazole
FL/FR
vinyl sulfurol
FL/FR
roasted
2-
acetyl pyrazine
FL/FR
spicy
ginger oleoresin
FL/FR
turmeric oleoresin
FL
sweet
vanilla oleoresin bali
FL/FR
tonka
gamma-
valerolactone
FL/FR
whiskey
3-
methyl-1-pentanol
FL/FR
winey
5-
ethyl-2-methyl pyridine
FL
 
Potential Uses:
FRbalsam
FLchocolate cocoa
FRfern
FRfloral
FRmoss
FLnut
FRoriental
 
Occurrence (nature, food, other):note
 cocoa
Search Trop Picture
 potato
Search Trop Picture
 
Synonyms:
2-isobutyl-3,(5 and 6)-dimethylpyrazine
2-isobutyl-3,5-(and 3,6)-dimethylpyrazine
3,5- and 3,6-dimethyl-2-isobutyl pyrazine
3,5- and 3,6-dimethyl-2-isobutylpyrazine
3,5,6-dimethyl-2-isobutylpyrazine
3,5- and 3,6-dimethyl-3-(2-methyl propyl) pyrazine
3,5- and 3,6-dimethyl-3-(2-methyl propyl)-1,4-diazine
 

Articles:

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Notes:
Used as a food additive [EAFUS]
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