6-chloropyrido[3,2-b]pyrazine

Product Name: 6-chloropyrido[3,2-b]pyrazine
CAS No.: 68236-03-3
Chemical Name: 6-chloropyrido[3,2-b]pyrazine
Synonyms: 2-b]pyrazine;6-chloropyrido[3;6-chloropyrido[3,2-b]pyrazine;6-chloropyrido[2,3-b]pyrazine;Pyrido[2,3-b]pyrazine, 6-chloro-;6-chloropyrido[3,2-b]pyrazine ISO 9001：2015 REACH
CBNumber: CB31856171
Molecular Formula: C7H4ClN3
Formula Weight: 165.58
MOL File: 68236-03-3.mol

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6-chloropyrido[3,2-b]pyrazine Property

Melting point:: 159 °C(Solv: ligroine (8032-32-4))
Boiling point:: 286.4±35.0 °C(Predicted)
Density: 1.437±0.06 g/cm3(Predicted)
storage temp.: Inert atmosphere,Room Temperature
pka: -0.91±0.30(Predicted)
Appearance: Colorless to light green Solid

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Safety

HS Code: 2933998090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Apolloscientific

Product number: OR960682
Product name: 6-Chloropyrido[3,2-b]pyrazine
Purity: 98%
Packaging: 250mg
Price: $110
Updated: 2021/12/16

AK Scientific

Product number: W7848
Product name: 6-Chloropyrido[3,2-b]pyrazine
Packaging: 250mg
Price: $135
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3H32-5-MB
Product name: 6-Chloropyrido[3,2-b]pyrazine
Purity: 98%
Packaging: 250mg
Price: $176
Updated: 2021/12/16

Apolloscientific

Product number: OR960682
Product name: 6-Chloropyrido[3,2-b]pyrazine
Purity: 98%
Packaging: 1g
Price: $255
Updated: 2021/12/16

Matrix Scientific

Product number: 070331
Product name: 6-Chloropyrido[3,2-b]pyrazine
Packaging: 500mg
Price: $908
Updated: 2021/12/16

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6-chloropyrido[3,2-b]pyrazine Chemical Properties,Usage,Production

Synthesis

40851-95-4

131543-46-9

68236-03-3

General procedure for the synthesis of 6-chloropyrido[3,2-b]pyrazines from 6-chloro-2,3-diaminopyridine and glyoxal (Intermediate 4.2): 6-chloro-2,3-diaminopyridine (1 g, 6.96 mmol, 1 eq.) was dissolved in THF (15 mL) at room temperature, followed by addition of glyoxal (0.84 mL, 18.1 mmol, 2.5 equivalent). The reaction mixture was stirred at room temperature for 2 h. The reaction progress was monitored by RP-HPLC. Upon completion of the reaction, THF was removed by evaporation and the residue was redissolved in ethyl acetate (30 mL). The organic phase was washed twice with saturated Na2CO3 solution, dried over magnesium sulfate and the solvent was evaporated in vacuum to afford 1.15 g of the target compound 6-chloropyrido[3,2-b]pyrazine (Intermediate 4.2) as a white solid. Yield: 1.15 g; Yield: 100%; Molecular formula: C7H4N3Cl; HPLC purity: 98%; HPLC conditions (H2O containing 0.1% TFA-ACN containing 0.05% TFA): retention time: 1.2 min; % area: 98%; 1H NMR (CDCl3) δ: 9.0 (s, 1H), 8.88 (s, 1H). 8.36 (d, 1H, J=8Hz), 7.67 (d, 1H, J=8Hz); LC-MS: m/z ESI: retention time 0.68 min, 167.0 (M+1).

References

[1] Patent: WO2006/24666, 2006, A1. Location in patent: Page/Page column 48

6-chloropyrido[3,2-b]pyrazine Preparation Products And Raw materials

Raw materials

Preparation Products

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6-chloropyrido[3,2-b]pyrazine Suppliers

China 56 Germany 1 India 1 United States 11 Global 69

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View Lastest Price from 6-chloropyrido[3,2-b]pyrazine manufacturers

Dideu Industries Group Limited

Product: 6-chloropyrido[3,2-b]pyrazine 68236-03-3
Price: US $1.10/g
Min. Order: 1g
Purity: 99.00%
Supply Ability: 100 Tons min
Release date: 2021-09-03

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6-chloropyrido[3,2-b]pyrazine ISO 9001：2015 REACH

68236-03-3

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