2-Methoxy-3-sec-butyl-pyrazine

Available forms:clear colorless liquid

pd_proNo:540936-e6a0f5cb-ca32-4fe2-a2c0-fdf6cfc756ad

pd_productuse:

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Detailed introduction

Cosmetics Grade 2-Methoxy-3-sec-butyl-pyrazine 24168-70-5 For Sale with Good Price

  • Molecular Formula:C9H14N2O
  • Molecular Weight:166.223
  • Appearance/Colour:clear colorless liquid 
  • Vapor Pressure:0.0995mmHg at 25°C 
  • Melting Point:92-94oC 
  • Refractive Index:n20/D 1.492(lit.)  
  • Boiling Point:230.5 °C at 760 mmHg 
  • PKA:0.80±0.10(Predicted) 
  • Flash Point:77.2 °C 
  • PSA：35.01000 
  • Density:0.998 g/cm3 
  • LogP:1.99870 

2-Methoxy-3-sec-butyl pyrazine(Cas 24168-70-5) Usage

Preparation

By condensation of isoleucine amide with glyoxal, followed by methylation with CH2N2.

Aroma threshold values

Detection: 0.001 ppb. Aroma characteristics at 1.0%: musty, green, vegetative, nutty, peppery and potato-like.

Taste threshold values

Taste characteristics at 1.0 ppm: musty, vegetative, potato, galbanum, fishy and earthy.

General Description

2-sec-Butyl-3-methoxypyrazine was identified as the main source of earthy/bell pepper (EBP) flavor in the Farmstead Cheddar cheeses.

InChI:InChI=1/C9H14N2O/c1-4-7(2)8-9(12-3)11-6-5-10-8/h5-7H,4H2,1-3H3/t7-/m0/s1

24168-70-5 Relevant articles

New insights into the synthesis and characterization of 2-methoxy-3-alkylpyrazines and their deuterated isotopologues

Schmarr,Sang,Ganss,Koschinski,Meusinger

scheme or table, p. 438 - 440 (2012/07/13)

A previously described synthetic route f...

24168-70-5 Process route

2-hydroxy-3-sec-butylpyrazine

2-hydroxy-3-sec-butylpyrazine

2-(methoxy)-3-(1-methylpropyl)pyrazine
24168-70-5

2-(methoxy)-3-(1-methylpropyl)pyrazine

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: trichlorophosphate
2: sodium acetate
With sodium acetate; trichlorophosphate;
methanol
67-56-1

methanol

3-sec-butyl-2-chloropyrazine
124070-53-7,143839-72-9,57674-18-7

3-sec-butyl-2-chloropyrazine

2-(methoxy)-3-(1-methylpropyl)pyrazine
24168-70-5

2-(methoxy)-3-(1-methylpropyl)pyrazine

Conditions
Conditions Yield
With sodium acetate;

24168-70-5 Upstream products

  • 67-56-1
    67-56-1

    methanol

  • 124070-53-7
    124070-53-7

    3-sec-butyl-2-chloropyrazine

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