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293814

Sigma-Aldrich

2,3-Diethyl-5-methylpyrazine

99%

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About This Item

Empirical Formula (Hill Notation):
C9H14N2
CAS Number:
18138-04-0
Molecular Weight:
150.22
EC Number:
242-024-6
MDL number:
MFCD00009635
UNSPSC Code:
12352100
PubChem Substance ID:
24857678
NACRES:
NA.22

Quality Level

100

assay

99%

refractive index

n20/D 1.498 (lit.)

density

0.949 g/mL at 25 °C (lit.)

SMILES string

CCc1ncc(C)nc1CC

InChI

1S/C9H14N2/c1-4-8-9(5-2)11-7(3)6-10-8/h6H,4-5H2,1-3H3

InChI key

PSINWXIDJYEXLO-UHFFFAOYSA-N

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General description

2,3-Diethyl-5-methylpyrazine has been identified as a potent odorant in coffee sample and has been evaluated by gas chromatography-olfactometry of decreasing headspace samples.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

176.0 °F - closed cup

flash_point_c

80 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

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Analysis of roasted coffee powders and brews by gas chromatography-olfactometry of headspace samples.
Semmelroch, Peter, and Werner Grosch.
LWT--Food Science and Technology, 28(3), 310-313 (1995)

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