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Sigma-Aldrich

2-Isobutyl-3-methoxypyrazine

99%

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About This Item

Empirical Formula (Hill Notation):
C9H14N2O
CAS Number:
24683-00-9
Molecular Weight:
166.22
EC Number:
246-402-1
MDL number:
MFCD00006128
UNSPSC Code:
12352100
PubChem Substance ID:
24857918
NACRES:
NA.22

Assay

99%

refractive index

n20/D 1.49 (lit.)

density

0.99 g/mL at 25 °C (lit.)

SMILES string

COc1nccnc1CC(C)C

InChI

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

InChI key

UXFSPRAGHGMRSQ-UHFFFAOYSA-N

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General description

2-Isobutyl-3-methoxypyrazine, a potent bell-pepper odourant, has been found to bind to cow olfactory mucosa homogenate.

Application

2-Isobutyl-3-methoxypyrazine has been employed as a model odorant molecule during an electrochemical assay for the detection of odorant molecules based on a rat odorant-binding protein (rOBP3).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

176.0 °F - closed cup

Flash Point(C)

80 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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P Pelosi et al.
The Biochemical journal, 201(1), 245-248 (1982-01-01)
2-Isobutyl-3-methoxypyrazine, a potent bell-pepper odorant, binds to cow olfactory mucosa homogenate. The receptor is saturable in the micromolar range and is competitively inhibited by other bell-pepper odourants, but not by other pyrazines of different odours. Other tissues do not bind
Emilie Barou et al.
Bioelectrochemistry (Amsterdam, Netherlands), 101, 28-34 (2014-07-18)
We developed an electrochemical assay for the detection of odorant molecules based on a rat odorant-binding protein (rOBP3). We demonstrated that rOBP3 cavity binds 2-methyl-1,4-naphtoquinone (MNQ), an electrochemical probe, as depicted from the decrease of its electrochemical signal, and deduced
Alfredo Koch et al.
Physiologia plantarum, 145(2), 275-285 (2012-01-10)
The roles of light and temperature in the accumulation of the vegetal impact compound 2-methoxy-3-isobutylpyrazine (MIBP) in grape (Vitis vinifera L.) berries were determined. Individual clusters were exposed to various light intensities using neutral density shade cloth before ripening, during
D Roujou de Boubée et al.
Journal of agricultural and food chemistry, 48(10), 4830-4834 (2000-10-29)
The 2-methoxy-3-isobutylpyrazine content in grapes and red wines was assayed by stable isotope dilution gas chromatography-mass spectrometry, following vapor extraction and purification on a cation resin microcolumn. The threshold beyond which the green bell pepper character is marked in wines
Andrea Cavaggioni et al.
Chemical senses, 28(9), 791-797 (2003-12-05)
The absolute configuration of 2-sec-butyl-4,5-dihydrothiazole (DHT) in urine of adult male mice was determined through chiral trifluoroacetyl derivative capillary chromatography by comparing the retention time with synthetic standards. (S)-DHT was extracted from fresh urine, while neither (R)-DHT nor the racemization
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