Pyrido[2,3-b]pyrazine

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Names

[ CAS No. ]:
322-46-3

[ Name ]:
Pyrido[2,3-b]pyrazine

[Synonym ]:
1,4,5-Triazanaphthalene
MFCD00053172
2,3-pyridopyrazine
Pyrido(2,3-b)pyrazine
1,4,5-trazanaphthalene
1,4,5-Triazanaphthalin
Pyrido(3,2-b)pyrazine
EINECS 206-294-9
5-azaquinoxaline

Chemical & Physical Properties

[ Density]:
1.27 g/cm3

[ Boiling Point ]:
253.9ºC at 760 mmHg

[ Melting Point ]:
139-143 °C

[ Molecular Formula ]:
C7H5N3

[ Molecular Weight ]:
131.13500

[ Flash Point ]:
115.9ºC

[ Exact Mass ]:
131.04800

[ PSA ]:
38.67000

[ LogP ]:
1.02480

[ Index of Refraction ]:
1.665

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UV1151600
CHEMICAL NAME :
Pyrido(2,3-b)pyrazine
CAS REGISTRY NUMBER :
322-46-3
BEILSTEIN REFERENCE NO. :
0111634
LAST UPDATED :
199709
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C7-H5-N3
MOLECULAR WEIGHT :
131.15
WISWESSER LINE NOTATION :
T66 BN EN JNJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
180 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#03516

Safety Information

[ Hazard Codes ]:
Xn:Harmful;

[ Risk Phrases ]:
R20/21/22;R36/37/38

[ Safety Phrases ]:
S36/37/39-S26

[ RTECS ]:
UV1151600

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 1,4-Dioxane-2,3-diol
  • 2,3-Diaminopyridine
  • 2,3-Dichloro-pyrido[2,3-b]pyrazine
  • GLYOXAL SODIUM BISULFITE
  • 7-Bromopyrido[2,3-b]pyrazine

DownStream

  • 1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 7-Iodopyrido[2,3-b]pyrazine
  • 6-Iodo-pyrido[2,3-b]pyrazine
  • 6-Bromopyrido[2,3-b]pyrazine
  • 7-Bromopyrido[2,3-b]pyrazine
  • 2-Chloropyrido[2,3-b]pyrazine
  • 7-methylpyrido[2,3-b]pyrazine
  • 6-bromo-N1-(4,5-dihydro-1H-imidazol-2-yl)-4-fluorobenzene-1,2-diamine
  • 2-Chloro-1-[3-(methylamino)propyl]-1H-imidazole-5-carbaldehyde
  • 2-Chloro-1-(propan-2-yl)-1H-imidazole-5-carbaldehyde
  • 2-Chloro-1-(2-chloroethyl)-1H-imidazole-5-carbaldehyde
  • 2-chloro-N1-(4,5-dihydro-1H-imidazol-2-yl)benzene-1,3-diamine
  • 1-(3-Bromoprop-1-yn-1-yl)-3-(trifluoromethoxy)benzene
  • 3,5-Diamino-2-(methoxymethyl)benzonitrile
  • (7-Fluoro-5-methylisoquinolin-1-yl)methanamine
  • 1-(1H-Imidazol-2-yl)-4-[(methylsulfanyl)methyl]cyclohexan-1-amine
  • 7-Bromo-5-chloroisoquinoline-1-carbonitrile
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