2-isobutyl-3-methoxypyrazine
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IUPAC name :2-methoxy-3-(2-methylpropyl)pyrazine
InChI :InChI=1/C9H14N2O/c1-7(2)6-8-9(12-3)11-5-4-10-8/h4-5,7H,6H2,1-3H3
InChIKey :UXFSPRAGHGMRSQ-UHFFFAOYAP
SMILES :CC(C)CC1=NC=CN=C1OC
cas number :24683-00-9
(EINECS) number :246-402-1
fema number :3132
coe number :11338
jecfa number :792
fl. number :14.043
molar refractivity :47.88 ± 0.3 cm3
parachor :405.7 ± 4.0 cm3
index of refraction :1.488 ± 0.02
surface tension :35.6 ± 3.0 dyne/cm
density :1.000 ± 0.06 g/cm3
polarizability :18.98 ± 0.5 10-24cm3
XlogP : 2.30
XlogP3 : 2.60
molecular weight : 166.2202600 (IUPAC)
formula :C9 H14 N2 O
NMR Predictor :Predict
 
 
export tariff code :2933.90
fda reg :unspecified

Suppliers :
Citrus and Allied Essences :2-isobutyl-3-methoxy pyrazine
Fleurchem :2-methoxy 3-isobutyl pyrazine
Fontarome :2-METHOXY 3 ISOBUTYLPYRAZINE (2-Isobutyl-3-methox
Odor:  Coffee, green pepper
Frutarom :2-ISOBUTYL-3(5/6)-METHOXYPYRAZINE
≥99.00% (sum of isomers), NI, Kosher
Odor:  Earthy, Galbanum, Green, Green Pea, Pepper.
Moellhausen :2-methoxy-3-isobutyl pyrazine
95% min. nature identical kosher
Penta :2-isobutyl-3-methoxypyrazine
Sigma-Aldrich-SAFC :2-Isobutyl-3-methoxypyrazine
≥99%, Kosher, FG
Odor:  green; vegetable; pepper
Tokyo Chemical Industry :2-isobutyl-3-methoxypyrazine
>93.0%(GC)
Treatt :2-Isobutyl-3-methoxypyrazine

organoleptics :
odor type :green
odor strength :high ,
recommend smelling in a 0.10 % solution or less
odor description :
at 0.10 % in dipropylene glycol.  
green bell pepper green pea galbanum

properties :
appearence :colorless clear liquid
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.99000 to 0.99500 @ 25.00 °C.
pounds per gallon - calc. : 8.238 to 8.279
refractive index :1.48800 to 1.49200 @ 20.00 °C.
boiling point : 214.00 to 215.00 °C. @ 760.00 mm Hg
vapor pressure :0.03500 mm/Hg @ 25.00 °C.
vapor density :5.7 ( Air = 1 )
flash point : 176.00  °F.  TCC  ( 80.00 °C. )
logP (o/w) : 2.86

safety :
most important hazard(s) :Xi - Irritant
  R 36/37/38 - Irritating to eyes, respiratory system, and skin.
S 02 - Keep out of the reach of children.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36 - Wear suitable protective clothing.
Oral Toxicity(LD50) :
  Gavage-Mouse    2000.00  mg/kg
(Quest International, 1983a)

Gavage-Rat    >4000.00  mg/kg
(Roure Inc., 1974)

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

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :1.60 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA) :1.00 (μg/capita/day)
 
recommendation for 2-isobutyl-3-methoxypyrazine usage levels up to :
  0.1000 % in the fragrance concentrate.
recommendation for 2-isobutyl-3-methoxypyrazine usage levels up to :
  0.5000 ppm in the flavor.

safety references :
European Food Safety Athority(efsa) :Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
EPI System :view
Cancer Citations :Search
Toxicology Citations :Search
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
 
WGK Germany :3
 
 
 
 2-methoxy-3-(2-methylpropyl)pyrazine
(EINECS) number :246-402-1
chemidplus :024683009
EPA Substance Registry Services :24683-00-9

references :
 2-methoxy-3-(2-methylpropyl)pyrazine
fl. number :14.043
jecfa number :792
NIST Chemistry WebBook :3444563719
pubchem :174521

Cosmetics :
Cosmetic uses : perfuming agents

other :
CosIng :cosmetic data
VCF-Online: VCF Volatile Compounds in Food
FDA Everything Added to Food in the United States (EAFUS)View
synonyms :
isobutyl methoxypyrazine
3-isobutyl-2-methoxypyrazine
 galbanum pyrazine
2-methoxy-3-(2-methyl propyl) pyrazine
2-methoxy-3-(2-methylpropyl)pyrazine
2-methoxy-3-isobutyl pyrazine
2-2-methyl propyl-3-methoxypyrazine

soluble in :
 alcohol
 water, 230 mg/L @ 25C

insoluble in :
 water

stability :
 stable in most media

(odor and/or flavor) blends with :
 acetaldehyde ethyl phenethyl acetal
 algae absolute
 allyl amyl glycolate
 ambroxan
isoamyl benzoate
 amyris wood oil
 animal carbolactone
 anise seed oil
para-anisyl alcohol
 basil oil
 bay leaf oil
 bean pyrazine
 benzoin resinoid
 benzyl alcohol
 benzyl benzoate
 benzyl salicylate
 bois de rose oil
isobutyl hexanoate
 butyl isovalerate
S-sec-butyl thioisovalerate
2-sec-butyl-3-methoxypyrazine
 camphor oil
 caraway seed oil
 carrot seed oil
 cedarleaf oil
 cedarwood oils
 cinnamyl alcohol
 cistus oil
 citronellyl acetate
 citrus carbaldehyde
 clary sage oil
 clover nitrile
 cortex pyridine
 costus root oil
 costus valerolactone
 cotinus coggygria oil
para-cresyl caprylate
 cubeb oil
 cumin seed oil
 cuminaldehyde
 cyclamen aldehyde
 cyclohexyl ethyl alcohol
gamma-decalactone
 decanal
 decyl acetate
 dihydromyrcenol
 dimethyl hydroquinone
 dodecanal
 dodecanol
 ethyl (Z)-3-hexenoate
 ethyl 2-cyclohexyl propionate
 ethyl laurate
2-ethyl-3-methoxypyrazine
 fir balsam absolute
 fir needle oil
 floral pyranol
 flouve absolute
 frankincense oil
 galbanum decatriene
 galbanum ketone
 galbanum oil terpeneless
 galbanum oleoresin
 galbanum oxathiane
 galbanum oxyacetate
 galbanum resinoid
 geranyl acetate
(E)-geranyl acetone
 geranyl isobutyrate
 grapefruit pentanol
 green acetate
 green pea pyrazine
 heliotropyl diethyl acetal
2-heptyl cyclopentanone
2-heptyl tetrahydrofuran
(Z)-3-hexen-1-yl benzoate
(Z)-3-hexen-1-yl propionate
(Z)-3-hexen-1-yl salicylate
 hexyl 2-furoate
 hexyl 2-methyl butyrate
alpha-hexyl cinnamaldehyde
 hexyl tiglate
 hyacinth ether
 ionones
2,4-ivy carbaldehyde
 juniper berry oil
 lavender absolute
 leaf acetal
 leafy oxime
 leerall
laevo-linalool
 linalool oxide
 lovage root oil
 mango
 melon heptenal
 melon nonenoate
2-methoxy-3-propyl pyrazine
 methyl dihydrojasmonate
 methyl heptine carbonate
 methyl ionones
 methyl octine carbonate
 mimosa absolute
 muguet carboxaldehyde
 muguet octadienol
 musks
 myrtenyl isobutyrate
 narcissus absolute
 neryl acetate
(E,Z)-2,6-nonadien-1-al
(E,Z)-2,6-nonadien-1-ol
(E,Z)-3,6-nonadien-1-ol
 oakmoss absolute
 ocean propanal
 orris pyridine
 patchouli ethanone
 pepper oil black
 phenethyl acetate
 phenethyl salicylate
 phenyl acetaldehyde
 phenyl acetaldehyde dimethyl acetal
 phenyl acetic acid
3-phenyl propionaldehyde
3-phenyl propyl alcohol
 pineapple heptadienone 10%
 propyl 2,4-decadienoate
isopropyl 3-methyl thiocrotonate
isopropyl thioisovalerate
 raspberry ketone methyl ether
 reseda acetal
 rhubarb undecane
 rose oxides
 santall
 shoyu pyrazine
 sorbyl isobutyrate
 spruce oil
 strawberry furanone
 styralyl acetate
alpha-terpineol
(E)-2-tetradecen-1-al
 tobacco dodecane
 tonka bean absolute
 tropical oxathiane
gamma-undecalactone
 undecanol
 verymoss
 vetiver oil
 violet dienyne
 violet methyl carbonate
 watermelon ketone
 woody acetate
 woody amylene
 woody propanol

(odor and/or flavor) used in :
 agrumen
 aldehydic
 amaryllis
 amber
 animal
 apple
 apple crabapple
 ash mountain ash
 balsam
 bark
 boxwood
 boxwood blossom
 boxwoodberry
 briar sweet briar eglantine
 cabochard
 calamus
 celery
 chamomile
 champaca champak
 cherry wild cherry
 chervil
 cilantro
 citrus
 clematis
 cloudberry bakeapple
 cognac
 cortex
 cypress
 daffodil narcissus
 earth humus
 evergreen
 fagonia
 fern fougere
 fig
 fir
 fixer
 foliage
 forest
 forest pine forest
 fresh
 galbanum
 gardenia
 geranium
 ginger
 grass green grass
 grass sweet grass
 green
 hops houblon
 hyacinth jacinthe
 hydrangea
 ivy leaf
 jonquil narcissus jonquilla
 kewda
 lavender
 leaf autumn leaf
 leaf green leaf
 lemon
 lime
 lotus
 metallic
 mimosa wattle
 moss
 muguet lily of the valley
 musk
 narcissus narcisse
 nettle
 nut
 ocean sea
 opoponax
 orange
 orange bitter orange
 oregano
 palmarosa
 pansy
 parsley
 patchouli
 pea green pea
 pepper
 pepper bell pepper
 petitgrain
 pine
 pine needle
 privet
 privet blossom
 rain spring rain
 reseda mignonette
 rhubarb
 rose geranium
 sandalwood
 seaweed
 spruce
 stem
 strawberry leaf
 tea green tea
 tomato
 tomato leaf
 vegetable
 verbena verveine
 vetiver
 vine
 weedy
 woody
 wormwood absinthium
 yew

natural occurrence in :
capsicum
coffee
galbanum
pea green pea
pepper bell pepper green pepper
potato products



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