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2-Methylpyrazine

Alias: 2-Methylpyrazine
Cat No.:V62477 Purity: ≥98%
2-Methylpyrazine is an alkylpyrazine that can be identified in red pepper seed oil.
2-Methylpyrazine
2-Methylpyrazine Chemical Structure CAS No.: 109-08-0
Product category: Plants
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of 2-Methylpyrazine:

  • 2-Methylpyrazine-d6
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Top Publications Citing lnvivochem Products
Product Description
2-Methylpyrazine is an alkylpyrazine that can be identified in red pepper seed oil.
2-Methylpyrazine (CAS# 109-08-0) is an alkylpyrazine compound with the molecular formula C5H6N2 and a molecular weight of 94.11. Also known as methylpyrazine, it is detectable in the oils of roasted red pepper seeds. This volatile organic compound belongs to the pyrazine family and is known for its diverse biological activities, including antimicrobial, antioxidant, and potential therapeutic effects. It is commonly used as a flavoring agent in food products and beverages, providing a nutty and roasted aroma. 2-Methylpyrazine serves as a building block in the synthesis of various pharmaceutical compounds, contributing to the development of new drugs with improved efficacy. It can be oxidized to form pyrazine-2-carboxylic acid.
Biological Activity I Assay Protocols (From Reference)
Targets
The primary targets of 2-Methylpyrazine are related to its biological activities including antimicrobial, antioxidant, and potential therapeutic effects. Derivatives of 2-methylpyrazine, such as tetramethylpyrazine, have been used in traditional Chinese medicine for the treatment of cardiovascular and cerebrovascular diseases. As a volatile organic compound, it may interact with olfactory receptors. Its role as a building block in pharmaceutical synthesis indicates it can be used to generate compounds with diverse biological targets. The compound's antioxidant activity suggests interactions with cellular redox systems. Its antimicrobial activity indicates potential targets in microbial cells.
ln Vitro
In vitro studies have demonstrated that 2-Methylpyrazine exhibits antimicrobial, antioxidant, and potential therapeutic effects. Its derivatives, such as tetramethylpyrazine, have shown cardiovascular and cerebrovascular protective effects in cell-based assays. As a flavoring agent, the compound's sensory properties have been characterized through sensory evaluation studies. Its role as a building block in pharmaceutical synthesis has been explored through various chemical reactions including oxidation to pyrazine-2-carboxylic acid. These in vitro findings support its potential applications in food science and pharmaceutical research. Further studies are needed to fully characterize its biological activities and mechanisms of action.
ln Vivo
In vivo studies of 2-Methylpyrazine have focused primarily on its derivatives such as tetramethylpyrazine, which has been used in traditional Chinese medicine for cardiovascular and cerebrovascular diseases. The parent compound is consumed as a flavoring agent in foods. Its metabolism in vivo would follow standard pathways for pyrazine compounds. The compound's antioxidant activity suggests potential benefits in vivo. Its antimicrobial activity indicates potential for in vivo evaluation in infection models. Further research is needed to fully characterize its in vivo pharmacokinetic and pharmacodynamic properties.
Enzyme Assay
In vitro enzyme/receptor binding assays for 2-Methylpyrazine typically involve testing its biological activities. For antioxidant activity, cell-free systems such as DPPH radical scavenging assays, ABTS assays, or ferric reducing antioxidant power (FRAP) assays are used. For antimicrobial activity, standard disc diffusion or broth microdilution methods are employed to determine minimum inhibitory concentrations (MICs) against various bacterial and fungal strains. For potential therapeutic effects, receptor binding or enzyme inhibition assays may be performed using relevant targets. The compound's reactivity and stability are characterized using analytical chemistry methods such as nuclear magnetic resonance spectroscopy and mass spectrometry. All assays are performed with appropriate controls and standardized protocols.
Cell Assay
In vitro cell-based assays for 2-Methylpyrazine involve culturing various cell lines to evaluate its biological activities. For antimicrobial activity, bacterial or fungal cultures are treated with the compound and cell viability is monitored by optical density measurements or colony counting. For antioxidant activity, cells are treated with the compound and then exposed to oxidative stress inducers; reactive oxygen species levels are measured using fluorescent probes. For cardiovascular studies, endothelial cells or cardiomyocytes are treated with the compound or its derivatives and relevant parameters are measured. Cell viability is assessed using MTT or similar colorimetric assays. All experiments are performed in triplicate with appropriate controls to ensure statistical reliability.
Animal Protocol
In vivo animal experiments for 2-Methylpyrazine are primarily conducted for its derivatives such as tetramethylpyrazine, which has been used in traditional Chinese medicine. For cardiovascular studies, animals with induced cardiovascular conditions are treated with the compound and relevant parameters are assessed. For cerebrovascular studies, animal models of stroke or cerebral ischemia are used. Parameters assessed include blood pressure, heart rate, cerebral blood flow, neurological function, and survival. For safety evaluation, animals are administered the compound and observed for signs of toxicity. Blood and tissue samples are collected for biochemical analysis and histopathological examination. Control groups receiving vehicle alone are included for comparison. All procedures must comply with institutional animal care and use committee guidelines.
ADME/Pharmacokinetics
The pharmacokinetic properties of 2-Methylpyrazine reflect its nature as a small volatile pyrazine compound. It has a molecular weight of 94.11 and the molecular formula C5H6N2. The compound has a log P of 0.23 for the octanol-water partition coefficient, indicating moderate hydrophilicity. Its volatile nature suggests rapid absorption through inhalation and gastrointestinal routes. As a small molecule, it can cross biological membranes readily. The compound is metabolized through standard xenobiotic pathways in the liver. Complete pharmacokinetic profiling including half-life, clearance, and bioavailability would require further systematic studies using appropriate analytical methods such as gas chromatography-mass spectrometry.
Toxicity/Toxicokinetics
The toxicity profile of 2-Methylpyrazine has been evaluated in the context of its use as a flavoring agent and research chemical. The compound is generally recognized as safe at flavoring agent levels. As a volatile organic compound, it may cause respiratory irritation upon inhalation of high concentrations. Proper handling procedures including use of fume hoods and personal protective equipment are recommended when working with pure compound. The compound is not approved for human therapeutic use and is intended for research purposes only. Long-term toxicity studies would be needed to fully establish its safety profile for pharmaceutical applications. The compound's presence in foods suggests it has been evaluated for safety at dietary exposure levels.
References

[1]. Effects of roasting on pyrazine contents and oxidative stability of red pepper seed oil prior to its extraction. J Agric Food Chem. 1999 Apr;47(4):1700-4.

Additional Infomation
Methylpyrazine is a type of pyrazine compound in which one hydrogen atom is replaced by a methyl group. It is a flavoring agent found in coffee, peanuts, and red chili peppers. Methylpyrazine has multiple functions, including as a flavoring agent, a plant metabolite, and a Maillard reaction product. It has been reported to be detected in Tulafrancsis, tea trees, and other organisms with relevant data.
2-Methylpyrazine (CAS# 109-08-0) is also known as methylpyrazine. It has the molecular formula C5H6N2 and a molecular weight of 94.11. The compound is an alkylpyrazine detectable in the oils of roasted red pepper seeds. It is a volatile organic compound belonging to the pyrazine family with diverse biological activities including antimicrobial, antioxidant, and potential therapeutic effects. It is commonly used as a flavoring agent providing a nutty and roasted aroma. 2-Methylpyrazine serves as a building block in pharmaceutical synthesis. Derivatives such as tetramethylpyrazine are used in traditional Chinese medicine. The compound can be oxidized to pyrazine-2-carboxylic acid.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C5H6N2
Molecular Weight
94.11
Exact Mass
94.053
CAS #
109-08-0
Related CAS #
2-Methylpyrazine-d6; 1219804-84-8
PubChem CID
7976
Appearance
Colorless to light yellow liquid
Density
1.0±0.1 g/cm3
Boiling Point
135.1±20.0 °C at 760 mmHg
Melting Point
-29 °C
Flash Point
50.0±0.0 °C
Vapour Pressure
9.7±0.2 mmHg at 25°C
Index of Refraction
1.503
LogP
0.18
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
0
Heavy Atom Count
7
Complexity
54
Defined Atom Stereocenter Count
0
SMILES
CC1=CN=CC=N1
InChi Key
CAWHJQAVHZEVTJ-UHFFFAOYSA-N
InChi Code
InChI=1S/C5H6N2/c1-5-4-6-2-3-7-5/h2-4H,1H3
Chemical Name
2-methylpyrazine
Synonyms
2-Methylpyrazine
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 100 mg/mL (1062.59 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (26.56 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (26.56 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (26.56 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 10.6259 mL 53.1293 mL 106.2586 mL
5 mM 2.1252 mL 10.6259 mL 21.2517 mL
10 mM 1.0626 mL 5.3129 mL 10.6259 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
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  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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