Pyrazine, 2-methylPyrazine (2M), 2,6-dimethylPyrazine (26DM), 2,3-dimethylPyrazine (23DM), 2-ethyl-3-methylPyrazine (2E3M), 2,3,5-trimethylPyrazine (235TM), 2,3-diethylPyrazine (23DE), 5-ethyl-2,3-dimethylPyrazine (5E23DM), 2,3,5,6-tetramethylPyrazine (2356TTM), 2-isobutyl-3-methylPyrazine (2I3M), 2,3-diethyl-5-methylPyrazine (23DE5M), 2-acetyl-3-methylPyrazine (2A3M), (3,5,6-trimethylpyrazin-2-yl)methanol (TM2YM) and 2-propylPyrazine were purchased from company Sigma-Aldrich (Shanghai, China). Meanwhile, 2-ethyl-6-methylPyrazine (2E6M), 2,6-diethylPyrazine (26DE) and 2-ethyl-3,5-dimethylPyrazine (2E35DM) were purchased from J&K Chemical Corp (Beijing, China). The above commercial standards (≥96% purity) were used. HPLC grade ethanol and LC–MS grade acetonitrile were purchased from Merck (Darmstadt, Germany). Ultra-pure water was obtained from a Milli-Q Gradient A10 system (Millipore, Billerica, MA, USA).
2 3 5 6 tetramethylpyrazine
Manufactured by Merck Group
Sourced in China, Germany
2,3,5,6-tetramethylpyrazine is a chemical compound with the molecular formula C10H16N2. It is a colorless solid with a characteristic odor. The compound serves as a precursor for the synthesis of various pharmaceutical and agrochemical products.
Automatically generated - may contain errors
Lab products found in correlation
2 3 5 trimethylpyrazine, by Merck Group (2 mentions)
Pyrazine, by Merck Group (1 mentions)
2 6 dimethylpyrazine, by Merck Group (1 mentions)
2 3 dimethylpyrazine, by Merck Group (1 mentions)
2 3 diethyl 5 methylpyrazine, by Merck Group (1 mentions)
Milli q gradient a10 system, by Merck Group (1 mentions)
2 methylpyrazine, by Merck Group (1 mentions)
Lc ms grade acetonitrile, by Merck Group (1 mentions)
Hplc grade ethanol, by Merck Group (1 mentions)
2 ethyl 3 methylpyrazine, by Merck Group (1 mentions)
Helium, by Linde (1 mentions)
2 3 butanedione, by Merck Group (1 mentions)
Ethyl acetate, by Avantor (1 mentions)
Petroleum ether, by Thermo Fisher Scientific (1 mentions)
2 3 pentanedione, by Merck Group (1 mentions)
Diethyl ether, by Carl Roth (1 mentions)
Acetoin, by Merck Group (1 mentions)
Sulfuric acid, by Carl Roth (1 mentions)
Hydrogen peroxide, by AppliChem (1 mentions)
Acetic acid, by Carl Roth (1 mentions)
2 protocols using 2 3 5 6 tetramethylpyrazine
1
Characterization of Pyrazine Derivatives
2
Analytical Reagents for Organic Synthesis
Check if the same lab product or an alternative is used in the 5 most similar protocols
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Petroleum ether (40-60°C; 95%) was purchased from Acros Organics (Geel, Belgium). 2,3-Hexanedione (94%) and 2,4,5-trimethyl oxazole (97%) were obtained from Alfa Aesar (Karlsruhe, Germany).
Benzaldehyde (99%) and hydrogen peroxide (30%) were obtained from AppliChem (Darmstadt, Germany). Acetic acid (100%), chloroform-d (99.8 atom% D, with 0.03 vol% TMS, stabilized with Ag), diethyl ether (99.5%), iron(II) sulphate heptahydrate (99.5%), sodium carbonate decahydrate (98%), sodium sulphate (p.a.) and sulfuric acid (96%) were purchased from Carl Roth (Karlsruhe, Germany). Pentanal (97%) was obtained from Fisher Scientific (Darmstadt, Germany), Silica gel 60 was purchased from Macherey-Nagel (Düren, Germany) and 2,3-butanedione (97%) from Merck (Darmstadt, Germany). Acetoin (96%), 2,3-pentanedione (97%), 2,3,5,6-tetramethylpyrazine (98%) and 2,3,5-trimethylpyrazine (99%) were purchased from Sigma-Aldrich (Taufkirchen, Germany). 5-Ethyl-2,3-dimethylpyrazine (98%) was obtained from TCI (Eschborn, Germany). Butanal (97%) and propanal (97%) were purchased from Th. Geyer (Renningen, Germany) and ethyl acetate (98%) from VWR (Darmstadt, Germany). Helium (5.0) was obtained from Praxair (Düsseldorf, Germany) and nitrogen (5.0) from Air Liquide (Düsseldorf, Germany). All numbers given in parentheses represent the minimum purity.
Benzaldehyde (99%) and hydrogen peroxide (30%) were obtained from AppliChem (Darmstadt, Germany). Acetic acid (100%), chloroform-d (99.8 atom% D, with 0.03 vol% TMS, stabilized with Ag), diethyl ether (99.5%), iron(II) sulphate heptahydrate (99.5%), sodium carbonate decahydrate (98%), sodium sulphate (p.a.) and sulfuric acid (96%) were purchased from Carl Roth (Karlsruhe, Germany). Pentanal (97%) was obtained from Fisher Scientific (Darmstadt, Germany), Silica gel 60 was purchased from Macherey-Nagel (Düren, Germany) and 2,3-butanedione (97%) from Merck (Darmstadt, Germany). Acetoin (96%), 2,3-pentanedione (97%), 2,3,5,6-tetramethylpyrazine (98%) and 2,3,5-trimethylpyrazine (99%) were purchased from Sigma-Aldrich (Taufkirchen, Germany). 5-Ethyl-2,3-dimethylpyrazine (98%) was obtained from TCI (Eschborn, Germany). Butanal (97%) and propanal (97%) were purchased from Th. Geyer (Renningen, Germany) and ethyl acetate (98%) from VWR (Darmstadt, Germany). Helium (5.0) was obtained from Praxair (Düsseldorf, Germany) and nitrogen (5.0) from Air Liquide (Düsseldorf, Germany). All numbers given in parentheses represent the minimum purity.
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