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W335809

Sigma-Aldrich

2-Methoxy-3(5 or 6)-isopropylpyrazine

≥98%, FG

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Synonym(s):
3,5 Or 6-Isopropyl-2-methoxypyrazine
Empirical Formula (Hill Notation):
C8H12N2O
CAS Number:
Molecular Weight:
152.19
FEMA Number:
3358
EC Number:
Council of Europe no.:
11344
MDL number:
PubChem Substance ID:
Flavis number:
14.121
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Halal
Kosher

reg. compliance

EU Regulation 1334/2008 & 178/2002
FDA 21 CFR 117

assay

≥98%

refractive index

n20/D 1.495 (lit.)

density

0.996 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

green; earthy; pea; pepper

SMILES string

COc1cnc(cn1)C(C)C.COc2cncc(n2)C(C)C.COc3nccnc3C(C)C

InChI

1S/3C8H12N2O/c1-6(2)7-4-10-8(11-3)5-9-7;1-6(2)7-4-9-5-8(10-7)11-3;1-6(2)7-8(11-3)10-5-4-9-7/h3*4-6H,1-3H3

InChI key

MQHZLANELJKBBO-UHFFFAOYSA-N

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This Item
W356905W325007W313203
2-Methyl-3(5 or 6)-ethoxypyrazine mixture of isomers, 99%, FG

W356905

2-Methyl-3(5 or 6)-ethoxypyrazine

2-Acetyl-3-ethylpyrazine 98%, FG

W325007

2-Acetyl-3-ethylpyrazine

2-Isobutyl-3-methoxypyrazine ≥99%, FG

W313203

2-Isobutyl-3-methoxypyrazine

grade

FG, Kosher, Halal

grade

FG, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher

biological source

synthetic

biological source

synthetic

biological source

synthetic

biological source

synthetic

food allergen

no known allergens

food allergen

no known allergens

food allergen

no known allergens

food allergen

no known allergens

assay

≥98%

assay

99%

assay

98%

assay

≥99%

documentation

see Safety & Documentation for available documents

documentation

see Safety & Documentation for available documents

documentation

see Safety & Documentation for available documents

documentation

see Safety & Documentation for available documents

General description

2-Methoxy-3(5or 6)-isopropylpyrazine is a mixture of positional isomers commonly used as a flavoring agent in the food industry. Pyrazine derivatives exhibit a wide variety of aromas in food. For instance, 2-methoxy-3-isopropyl pyrazine produces a green pea odor and earthy and beany flavors . In addition, they are naturally found in coffee beans, cocoa beans, nuts, and vegetables.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

152.6 °F

flash_point_c

67 °C


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HS-SPME-GC-MS/olfactometry combined with chemometrics to assess the impact of germination on flavor attributes of chickpea, lentil, and yellow pea flours
Xu M, et al.
Food Chemistry, 280, 83-95 (2019)
The FEMA GRAS assessment of pyrazine derivatives used as flavor ingredients
Adams TB, et al.
Food And Chemical Toxicology, 40(4), 429-451 (2002)

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