ChemicalBook > CAS DataBase List > 5,6-DIMETHYLPYRAZIN-2-AMINE

5,6-DIMETHYLPYRAZIN-2-AMINE

Product Name: 5,6-DIMETHYLPYRAZIN-2-AMINE
CAS No.: 6294-70-8
Chemical Name: 5,6-DIMETHYLPYRAZIN-2-AMINE
Synonyms: NSC 9622;5,6-DIMETHYLPYRAZIN-2-AMINE;6-Amino-2,3-dimethylpyrazine;2-amino-5,6-dimethylpyrazine;2-Pyrazinamine, 5,6-dimethyl-
CBNumber: CB42451112
Molecular Formula: C6H9N3
Formula Weight: 123.16
MOL File: 6294-70-8.mol

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5,6-DIMETHYLPYRAZIN-2-AMINE Property

Melting point:: 140-144 °C(Solv: benzene (71-43-2))
Boiling point:: 253.4±35.0 °C(Predicted)
Density: 1.112±0.06 g/cm3(Predicted)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
pka: 3.80±0.10(Predicted)
Appearance: Off-white to light yellow Solid

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TRC

Product number: D502773
Product name: 5,6-dimethylpyrazin-2-amine
Packaging: 50mg
Price: $110
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FD153860
Product name: 5,6-Dimethylpyrazin-2-amine
Packaging: 50mg
Price: $118
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FD153860
Product name: 5,6-Dimethylpyrazin-2-amine
Packaging: 100mg
Price: $206
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FD153860
Product name: 5,6-Dimethylpyrazin-2-amine
Packaging: 25mg
Price: $68
Updated: 2021/12/16

AK Scientific

Product number: W7493
Product name: 5,6-Dimethylpyrazin-2-amine
Packaging: 100mg
Price: $85
Updated: 2021/12/16

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5,6-DIMETHYLPYRAZIN-2-AMINE Chemical Properties,Usage,Production

Synthesis

69816-37-1

431-03-8

6294-70-8

Step 1: Synthesis of 2-amino-5,6-dimethylpyrazine. 2-Aminoacetamidine dihydrobromide (620 mg, 2.64 mmol) was stirred in 6 mL of methanol (MeOH) in a capped flask at -30 °C (using an acetonitrile/CO2 bath). Meanwhile, 2,3-butanedione (232 μL, 2.64 mmol) was stirred with sodium acetate (700 mg) in 6 mL of water (H2O) until homogeneous. Using a pipette, the 2,3-butanedione solution was slowly added to 2-aminoacetamidine dihydrobromide solution followed by 2.5 mL of 3.6 M sodium hydroxide (NaOH) solution. The reaction mixture was slowly warmed to room temperature and stirred overnight. Upon completion of the reaction, methanol was removed by rotary evaporation and the aqueous phase was extracted with ethyl acetate (EtOAc) three times (30 mL each). The organic phases were combined, dried with magnesium sulfate (MgSO4), filtered and concentrated to give a yellow solid containing a small amount of impurities. The solid was ground and filtered with a solvent mixture of ethyl acetate/ether (EtOAc/Et2O) to give pure 2-amino-5,6-dimethylpyrazine (55 mg, 17% yield). 1H-NMR (400 MHz, CDCl3) δ 7.76 (s, 1H), 4.25 (br s, 2H), 2.40 (s, 3H), 2.37 (s, 3H).

References

[1] Patent: US2003/69284, 2003, A1
[2] Patent: EP3372601, 2018, A1. Location in patent: Paragraph 0853; 0854

5,6-DIMETHYLPYRAZIN-2-AMINE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 5,6-DIMETHYLPYRAZIN-2-AMINE manufacturers

Nanjing jinheyou Trading Co., Ltd.

Product: 5,6-Dimethylpyrazin-2-amine 6294-70-8
Price: US $0.00/g
Min. Order: 1g
Purity: 95%min
Supply Ability: 30kgs/month
Release date: 2019-11-14

Nanjing jinheyou Trading Co., Ltd.

Product: 5,6-Dimethylpyrazin-2-amine 6294-70-8
Price: US $0.00/g
Min. Order: 1g
Purity: 95%min
Supply Ability: 20kgs/month
Release date: 2019-11-14

6294-70-8, 5,6-DIMETHYLPYRAZIN-2-AMINERelated Search:

5,6-DIAMINO-2,3-DICYANOPYRAZINE 3-AMINO-5,6-DIMETHYL-PYRAZINE-2-CARBOXYLIC ACID 6,7-Diphenylpterin 5-AMINO-6-CHLORO-2,3-DICYANOPYRAZINE 1-Methyl-6,7-diphenyllumazine Triampyzine 1,3,6,7-TETRAMETHYLPTERIDINE-2,4(1H,3H)-DIONE 5-OXIDE 3-(ETHYLAMINO)-5-METHYL-6-[(PHENYLIMINO)METHYL]-2-PYRAZINECARBONITRILE AURORA 12679 AURORA 13560 RARECHEM AL BO 0788 AURORA 14733 AURORA 13808 AURORA 13562 6,7-Dimethylpteridine-2,4(1H,3H)-dione 4-Amino-1,7-diethyl-6-methylpyrazino(2,3-c)(1,2,6)thiadiazine 2,2-diox ide AURORA 12680 AURORA 13561

5,6-DIMETHYLPYRAZIN-2-AMINE

2-amino-5,6-dimethylpyrazine

6-Amino-2,3-dimethylpyrazine

NSC 9622

2-Pyrazinamine, 5,6-dimethyl-

6294-70-8