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Cas Database

109-08-0

109-08-0

Identification

  • Product Name:2-Methylpyrazine

  • CAS Number: 109-08-0

  • EINECS:203-645-8

  • Molecular Weight:94.116

  • Molecular Formula: C5H6N2

  • HS Code:29339990

  • Mol File:109-08-0.mol

Synonyms:2-Methyl Pyrazine;2-Methyl-1,4-diazine;Methylpyrazine;Pyrazine, methyl-;Methyl Pyrazine Natural (NEW);

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Safety information and MSDS view more

  • Pictogram(s):HarmfulXn

  • Hazard Codes:Xn,Xi,F

  • Signal Word:Warning

  • Hazard Statement:H226 Flammable liquid and vapourH302 Harmful if swallowed

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

Supplier and reference price view more

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  • Manufacture/Brand:TRC
  • Product Description:2-Methylpyrazine
  • Packaging:25g
  • Price:$ 215
  • Delivery:In stock
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  • Manufacture/Brand:TRC
  • Product Description:2-Methylpyrazine
  • Packaging:10g
  • Price:$ 155
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  • Manufacture/Brand:TRC
  • Product Description:2-Methylpyrazine
  • Packaging:5g
  • Price:$ 135
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  • Manufacture/Brand:TCI Chemical
  • Product Description:2-Methylpyrazine >98.0%(GC)
  • Packaging:25mL
  • Price:$ 27
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  • Manufacture/Brand:TCI Chemical
  • Product Description:2-Methylpyrazine >98.0%(GC)
  • Packaging:250mL
  • Price:$ 132
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:2-Methylpyrazine 99.0%
  • Packaging:100 g
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2-Methylpyrazine ≥99%, FCC, FG
  • Packaging:100 g
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2-Methylpyrazine ≥99%, FCC, FG
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2-Methylpyrazine ≥99%
  • Packaging:100g
  • Price:$ 78.4
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2-Methylpyrazine Pharmaceutical Secondary Standard; Certified Reference Material
  • Packaging:500mg
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Relevant articles and documentsAll total 48 Articles be found

Catalytic Synthesis Of Aziridine From 1,2-Diaminoethane

Anderson, A. A.,Simonyan, S. P.,Shimanskaya, M. V.

, p. 1134 - 1141 (1993)

The contact conversion of 1,2-diaminoethane over a tungsten trioxide catalyst at 240-580 deg C has been studied by an impulse chromatographic method.The basic reaction path under these conditions is unimolecular deaminocyclization to give aziridine (31-35percent).Piperazine and triethylenediamine, products of bi- and trimolecular deaminocyclization, are present as products.The deamination process is accompanied by coupled dehydrogenation and hydrogenolysis reactions.Addition of the acid anhydrides SiO2, P2O5 and B2O3 to the catalyst increases its activity but has onlyanegligible affect on the activation energy of the process.

Effective utilization of glycerol for the synthesis of 2-methylpyrazine over ZnO-ZnCr2O4 catalyst

Venugopal,Sarkari,Naveen Kumar,Kotesh Kumar,Syed John,Krishna Reddy,Hari Padmasri

, p. 387 - 393 (2014)

Bioglycerol an inevitable by-product in the production of biodiesel was effectively utilized for the synthesis of 2-methylpyrazine (2-MP) by vapour phase dehydrocyclization with ethylenediamine over ZnO-ZnCr2O 4(Zn-Cr-O) mixed oxides

Volatile Compounds Generated from Thermal Reaction of Methionine and Methionine Sulfoxide with or without Glucose

Yu, Tung-Hsi,Ho, Chi-Tang

, p. 1641 - 1646 (1995)

Methionine and methionine sulfoxide were mixed with or without glucose in distilled water, individually.These solutions were heated in closed sample cylinders at 180 deg C for 1 h.The volatile compounds generated were extracted using methylene chloride and analyzed by GC and GC-MS.Pyrazine compounds, especially 2,5-dimethyl-, 2-ethyl-5-methyl-, trimethyl-, and methylpyrazines were the predominant compounds among those generated from thermal interactions of glucose and methionine or methionine sulfoxide.The formation of methional or those compounds derived for methional was found to be more favorable from the thermal degradation of methionine, whereas the formation of dimethyl polysulfides, especially dimethyl disulfide and dimethyl trisulfide, was found to be more favorable from the thermal degradation of methionine sulfoxide.Glucose was found to have a catalytic effect on the formation of volatile compounds from the thermal degradation of methionine or methionine sulfoxide.Keywords: Methionine; methionine sulfoxide; methional; methyl sulfides; volatiles

Catalytic synthesis of 2-methylpyrazine over Cr-promoted copper based catalyst via a cyclo-dehydrogenation reaction route

Jing, Fangli,Zhang, Yuanyuan,Luo, Shizhong,Chu, Wei,Zhang, Hui,Shi, Xinyu

, p. 621 - 630 (2010)

The cyclo-dehydrogenation of ethylene diamine and propylene glycol to 2-methylpyrazine was performed under the atmospheric conditions at 380°C. The Cr-promoted Cu-Zn/Al 2O 3 catalysts were prepared by impregnation method and characterized by ICP-AES, N 2 adsorption/desorption, XRD, XPS, N 2O chemisorption, TPR and NH3-TPD techniques. The amorphous chromium species existing in Cu-Zn-Cr/Al 2O 3 catalyst enhanced the dispersion of active component Cu, promoted the reduction of catalyst. Furthermore, the catalytic performance was significantly improved. The acidity of the catalyst played an important role in increasing the 2-MP selectivity. To optimize the reaction parameters, influences of different chromium content, reaction temperature, liquid hourly space velocity (LHSV), reactants molar ratio and time on stream on the product pattern were studied. The results demonstrated that addition of chromium promoter revealed satisfying catalytic activity, stability and selectivity of 2-methylpyrazine. Indian Academy of Sciences.

Degradation Products Fromed from Glucosamine in Water

Shu, Chi-Kuen

, p. 1129 - 1131 (1998)

An aqueous solution of glucosamine hydrochloride was heated to 150 °C for 5 min under different pH conditions. The reaction product mixture obtained was analyzed by GC/MS. It was found that the major products formed were furfurals, especially at pH = 4 and 7. At pH = 8.5, additional flavor components were generated, including pyrazines, 3-hydroxypyridines, pyrrole-2-carboxaldehyde, furans, acetol, and several other compounds. Of the components identified, it is worthwhile to note the formation of pyrazine and methylpyrazine as major components at pH = 8.5. It is proposed that a retro-aldol condensation plays an important role in the formation of the intermediates, α-aminoacetaldehyde (I) and α-amino propanal (II). As a result, self-condensation of I generates pyrazine and combination of I and II generates methylpyrazine. In addition, it is also interesting to note the formation of 3-hydroxypyridines and pyrrole-2-carboxaldehyde. It is suggested that both groups of compounds are derived from furfurals. As the ammonia is liberated from glucosamine, it initiates the ring-opening of furfurals to form 5-amino-2-keto-3-pentenals. Intramolecular condensations of these intermediates between the amino group and the carbonyl groups lead to the formation of 3-hydroxypyridines and pyrrole-2-carboxalhyde.

Vapor phase synthesis of methylpyrazine using aqueous glycerol and ethylenediamine over ZnCr2O4 catalyst: Elucidation of reaction mechanism

Sarkari, Reema,Anjaneyulu, Chatla,Krishna, Vankudoth,Kishore, Ramineni,Sudhakar, Medak,Venugopal, Akula

, p. 1067 - 1070 (2011)

A novel method has been developed for the synthesis of methylpyrazine (MP) by using aqueous glycerol and ethylenediamine (EDA) over Zn-Cr catalyst derived from hydrotalcite precursors. The X-ray diffraction analysis of the oven-dried Zn-Cr samples synthesized at various pH ranging from 7 to 11 showed hydrotalcite phase whereas the calcined catalysts displayed ZnO and ZnCr2O 4 phases. The cyclisation activity of Zn-Cr catalyst prepared at pH ~ 9 demonstrated 99.4% conversion of EDA and 94% of glycerol with ~ 72% selectivity to MP at a reaction temperature of 400 °C. This process demonstrates direct utilization of bio-glycerol for the synthesis of MP.

SYNTHESIS OF NITROGEN CONTAINING HETEROCYCLES OVER COPPER CHROMITE

Meksh, P.A.,Anderson, A.A.,Shimanska, M.

, p. 822 - 828 (1994)

The reactions of 1,2-diaminopropane, 1-amino-2-propanol, 1-amino-2-ethanol, and N-(β-aminoethyl)-1,2-diaminoethane in the gas phase over copper chromite have been investigated with the objective of synthesising nitrogen containing heterocycles.At 240-360

Synthesis of 2-methylpyrazine on ternary oxide catalysts

Kagarlitskii,Krichevskii,Balpanov

, p. 1093 - 1095 (2005)

Synthesis of 2-methylpyrazine by cyclocondensation of ethylenediamine with 1,2-propylene glycol in the presence of zinc-molybdenum-chromium catalysts was studied.

Influence of acid-base sites on ZnO-ZnCr2O4 catalyst during dehydrocyclization of aqueous glycerol and ethylenediamine for the synthesis of 2-methylpyrazine: Kinetic and mechanism studies

Venugopal, Akula,Sarkari, Reema,Anjaneyulu, Chatla,Krishna, Vankudoth,Kumar, Mandari Kotesh,Narender, Nama,Padmasri, Aytam Hari

, p. 398 - 409 (2014)

The physicochemical characteristics of ZnO-ZnCr2O4 (Zn-Cr-O) mixed oxides were determined by adsorption and spectroscopic methods. The catalytic activities of Zn-Cr-O was investigated for dehydrocyclization of ethylenediamine and aqu

Glycerol catalytic cyclocondensation with ethanediamine to pyrazinyl compounds over the modified SiO2-Al2O3

Liu, Chuanqi,Xu, Chenghua,Xia, Tongwei,Guo, Yan,Liu, Jianying

, p. 377 - 382 (2012)

The Fe, Zn, and Mn-modified SiO2-Al2O3 catalysts for the glycerol vapor-phase cyclocondensation with ethanediamine (ED) to 2-pyrazinemethanol (2-PMol) and 2-methylpyrazine (2-MP) in a fixed-bed system were prepared by coprecipitation and characterized by N2 adsorption-desorption, X-ray powder diffraction, and NH3 temperature-programmed desorption (NH3-TPD) in the present work. The results showed that the Mn-modified SiO2-Al2O3 catalyst with a SiO2/Al2O3 molar ratio 15.84 and 6% Mn gave the highest catalytic activity for formation of 2-PMol (53.1%) and 2-MP (42.9%). Mn species could cause the modulation of the acidic species of catalysts, improving the glycerol cyclocondensation with ED to 2-PMol, and also acted as the catalytic centers for the hydrodehydration of 2-PMol to 2-MP. However, too many strong acidic sites could lead to ED self-cyclocondensation to form a by-product pyrazine. The optimum temperature was tested to be 380°C for the cyclocondensation over a 6%Mn-SiO2-Al2O 3 catalyst.

Comparison of pyrazines formation in methionine/glucose and corresponding Amadori rearrangement product model

Cui, Heping,Deng, Shibin,Hayat, Khizar,Ho, Chi-Tang,Zhai, Yun,Zhang, Qiang,Zhang, Xiaoming

, (2022/03/07)

The generation of pyrazines in a binary methionine/glucose (Met/Glc) mixture and corresponding methionine/glucose-derived Amadori rearrangement product (MG-ARP) was studied. Quantitative analyses of pyrazines and methional revealed that MG-ARP generated more methional compared to Met/Glc, whereas lower content and fewer species of pyrazines were observed in the MG-ARP model. Comparing the availability of α-dicarbonyl compounds generated from the Met/Glc model, methylglyoxal (MGO) was a considerably effective α-dicarbonyl compound for the formation of pyrazines during MG-ARP degradation, but glyoxal (GO) produced from MG-ARP did not effectively participate in the corresponding formation of pyrazines due to the asynchrony on the formation of GO and recovered Met. Diacetyl (DA) content was not high enough to form corresponding pyrazines in the MG-ARP model. The insufficient interaction of precursors and rapid drops in pH limited the formation of pyrazines during MG-ARP degradation. Increasing reaction temperature could reduce the negative inhibitory effect by promoting the content of precursors.

Application of a reusable Co-based nanocatalyst in alcohol dehydrogenative coupling strategy: Synthesis of quinoxaline and imine scaffolds

Panja, Dibyajyoti,Paul, Bhaskar,Balasubramaniam, Bhuvaneshwari,Gupta, Raju K.,Kundu, Sabuj

, (2020/01/21)

A nitrogen doped carbon supported cobalt catalyzed efficient synthesis of imines and quinoxaline motifs is reported. Co(OAc)2-Phen/Carbon-800 (Co-phen/C-800) showed the superior reactivity compared to other materials prepared at different temperature, in the synthesis of quinoxalines by the coupling between diamines and diols. Moreover, applying the transfer hydrogenation and acceptorless dehydrogenative coupling strategy, imines and quinoxaline derivatives were synthesized from the nitro compounds. The practical applicability of this protocol was demonstrated by the gram-scale synthesis and the reusability of the catalyst upto 8th cycle. Furthermore, several kinetic experiments were carried out to realize the probable mechanism.

Process route upstream and downstream products

Process route

3-amino-2-propanol
78-96-6,1674-56-2

3-amino-2-propanol

1,4-pyrazine
290-37-9

1,4-pyrazine

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

1-aminoethyl-2-methylaziridine

1-aminoethyl-2-methylaziridine

Conditions
Conditions Yield
With copper chromite; at 180 ℃; for 0.333333h; Product distribution; var. temp.; other aminoalcohols;
2-(2-hydroxy-2-phenylpropyl)pyrazine
108246-76-0

2-(2-hydroxy-2-phenylpropyl)pyrazine

2-Methylpyrazine
109-08-0

2-Methylpyrazine

1-Phenylethanol
98-85-1,13323-81-4

1-Phenylethanol

2-Methyl-1,5-diphenyl-1,5-pentanedione
47074-06-6

2-Methyl-1,5-diphenyl-1,5-pentanedione

acetophenone
98-86-2

acetophenone

Conditions
Conditions Yield
D-Glucose
2280-44-6

D-Glucose

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2-ethyl-6-methylpyrazine
13925-03-6

2-ethyl-6-methylpyrazine

2-ethyl-5-methypyrazine
13360-64-0

2-ethyl-5-methypyrazine

Conditions
Conditions Yield
In various solvent(s); at 180 ℃; for 0.116667h; Product distribution; Mechanism; other amino acids (also 13C-labeled); also fructose;
8 % Chromat.
25 % Chromat.
4 % Chromat.
10 % Chromat.
9 % Chromat.
20 % Chromat.
D-glucose
50-99-7

D-glucose

H-Lys-Lys-OH hydrochloride
134276-45-2

H-Lys-Lys-OH hydrochloride

1,4-pyrazine
290-37-9

1,4-pyrazine

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

3-ethenyl-2,5-dimethylpyrazine
80935-98-4

3-ethenyl-2,5-dimethylpyrazine

2-ethyl-6-methylpyrazine
13925-03-6

2-ethyl-6-methylpyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;
H-Lys-Lys-OH hydrochloride
134276-45-2

H-Lys-Lys-OH hydrochloride

2-oxopropanal
78-98-8

2-oxopropanal

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

3,5-dimethyl-2-(Z-1-propenyl)-pyrazine
55138-74-4

3,5-dimethyl-2-(Z-1-propenyl)-pyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

3-ethenyl-2,5-dimethylpyrazine
80935-98-4

3-ethenyl-2,5-dimethylpyrazine

2-ethyl-3,5-dimethylpyrazine
13925-07-0

2-ethyl-3,5-dimethylpyrazine

5-ethyl-2,3-dimethylpyrazine
15707-34-3

5-ethyl-2,3-dimethylpyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;
D-glucose
50-99-7

D-glucose

LysAla*hydrobromide
410538-35-1

LysAla*hydrobromide

1,4-pyrazine
290-37-9

1,4-pyrazine

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

2-ethyl-6-methylpyrazine
13925-03-6

2-ethyl-6-methylpyrazine

2-ethyl-5-methypyrazine
13360-64-0

2-ethyl-5-methypyrazine

5-ethyl-2,3-dimethylpyrazine
15707-34-3

5-ethyl-2,3-dimethylpyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;
LysAla*hydrobromide
410538-35-1

LysAla*hydrobromide

2-oxopropanal
78-98-8

2-oxopropanal

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

Tetramethylpyrazine
1124-11-4

Tetramethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

3-ethenyl-2,5-dimethylpyrazine
80935-98-4

3-ethenyl-2,5-dimethylpyrazine

2-ethyl-3,5-dimethylpyrazine
13925-07-0

2-ethyl-3,5-dimethylpyrazine

5-ethyl-2,3-dimethylpyrazine
15707-34-3

5-ethyl-2,3-dimethylpyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;
D-glucose
50-99-7

D-glucose

LysLeu*acetate
103404-72-4

LysLeu*acetate

1,4-pyrazine
290-37-9

1,4-pyrazine

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

2-ethyl-6-methylpyrazine
13925-03-6

2-ethyl-6-methylpyrazine

2-ethyl-3,5-dimethylpyrazine
13925-07-0

2-ethyl-3,5-dimethylpyrazine

2-ethyl-5-methypyrazine
13360-64-0

2-ethyl-5-methypyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;
LysLeu*acetate
103404-72-4

LysLeu*acetate

2-oxopropanal
78-98-8

2-oxopropanal

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

2,3,5-trimethyl-6-ethylpyrazine
17398-16-2

2,3,5-trimethyl-6-ethylpyrazine

2-ethyl-3,5-dimethylpyrazine
13925-07-0

2-ethyl-3,5-dimethylpyrazine

5-ethyl-2,3-dimethylpyrazine
15707-34-3

5-ethyl-2,3-dimethylpyrazine

2,5-dimethyl-3-propylpyrazine
18433-97-1

2,5-dimethyl-3-propylpyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;
D-glucose
50-99-7

D-glucose

LysSer*hydrochloride
275366-32-0

LysSer*hydrochloride

1,4-pyrazine
290-37-9

1,4-pyrazine

2-Methylpyrazine
109-08-0

2-Methylpyrazine

2,5-dimethyl-pyrazine
123-32-0

2,5-dimethyl-pyrazine

2,3-dimethylpyrazine
5910-89-4

2,3-dimethylpyrazine

2-ethyl-3,6-dimethylpyrazine
13360-65-1

2-ethyl-3,6-dimethylpyrazine

2,6-dimethylpyrazine
108-50-9

2,6-dimethylpyrazine

2,3,5-trimethylpyrazine
14667-55-1

2,3,5-trimethylpyrazine

2-ethyl-6-methylpyrazine
13925-03-6

2-ethyl-6-methylpyrazine

2-ethyl-3,5-dimethylpyrazine
13925-07-0

2-ethyl-3,5-dimethylpyrazine

2-ethyl-5-methypyrazine
13360-64-0

2-ethyl-5-methypyrazine

Conditions
Conditions Yield
In water; at 130 ℃; for 2h; pH=8;

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  • Main Products:89
  • Country:China (Mainland)
  • Chemwill Asia Co., Ltd.
  • Business Type:Manufacturers
  • Contact Tel:021-51086038
  • Emails:sales@chemwill.com
  • Main Products:56
  • Country:China (Mainland)
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