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Merck
CN

06224

2-Isobutyl-3-methoxypyrazine

analytical standard

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About This Item

Empirical Formula (Hill Notation):
C9H14N2O
CAS Number:
24683-00-9
Molecular Weight:
166.22
NACRES:
NA.24
PubChem Substance ID:
329748220
UNSPSC Code:
85151701
EC Number:
246-402-1
MDL number:
MFCD00006128

Key Documents

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InChI key

UXFSPRAGHGMRSQ-UHFFFAOYSA-N

InChI

1S/C9H14N2O/c1-7(2)6-8-9(12-3)11-5-4-10-8/h4-5,7H,6H2,1-3H3

SMILES string

COc1nccnc1CC(C)C

grade

analytical standard

assay

≥99% (GC)

shelf life

limited shelf life, expiry date on the label

refractive index

n20/D 1.488-1.492, n20/D 1.49 (lit.)

density

0.99 g/mL at 25 °C (lit.)

suitability

conforms to structure for Proton NMR spectrum

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

format

neat

Quality Level

100

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General description

2-Isobutyl-3-methoxypyrazine is a volatile aroma compound with a characteristic odor. It is one of the main constituents of bell peppers and is utilized commercially as a flavoring agent.

Application

2-Isobutyl-3-methoxypyrazine may be used as an analytical reference standard for the determination of the analyte in Capsicum annuum, water samples and Vitis vinifera C. V. Carménère wines by chromatography based techniques.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

176.0 °F - closed cup

flash_point_c

80 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL9291
BCCH6787
BCCD1261
BCCB4613
BCBV1006

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Gas chromatography coupled with mass spectrometry detection for the volatile profiling of Vitis vinifera CV. carmenere wines
Dominguez ANA and Agosin E
Journal of the Chilean Chemical Society, 55(3), 385-391 (2010)
Analysis of volatile aroma compounds of fresh chilli (Capsicum annuum) during stages of maturity using solid phase microextraction (SPME)
Mazida MM, et al.
Journal of food composition and analysis, 18(5), 427-437 (2005)
Amir Salemi et al.
Journal of chromatography. A, 1136(2), 170-175 (2006-10-24)
An automated technique based on purge-and-trap coupled to gas chromatography with mass spectrometric detection has been developed and optimized for the trace determination of five of the most important water odorants; 2-isopropyl-3-methoxypyrazine, 2-isobutyl-3-methoxypyrazine, 2-methylisoborneol, 2,4,6-trichloroanisole and geosmin. The extraction method

Protocols

Standard Methods 6040D: GC Analysis of Geosmin and 2-MIB on SLB®-5ms after SPME using 50/30 µm DVB/Carboxen/PDMS Fiber

Separation of 2-Isopropyl-3-methoxypyrazine 20 ppt; 2-Isobutyl-3-methoxypyrazine; 2-Methylisoborneol; (±)-Geosmin 10 ppt

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