[1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one

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Names

[ CAS No. ]:
6969-71-7

[ Name ]:
[1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one

[Synonym ]:
T56 ANVMNJ
T56 AN CNNJ BQ
[1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one
EINECS 230-191-8
3-Hydroxytriazolo[4,3-a]pyridine
2H-[1,2,4]triazolo[4,3-a]pyridin-3-one
MFCD00022632
1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Melting Point ]:
231°C

[ Molecular Formula ]:
C6H5N3O

[ Molecular Weight ]:
135.123

[ Exact Mass ]:
135.043259

[ PSA ]:
50.16000

[ LogP ]:
-1.17

[ Index of Refraction ]:
1.739

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S36

[ RIDADR ]:
NONH for all modes of transport

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 2-Chloropyridine
  • Semicarbazide hydrochloride
  • dl-1,2-diphenyl-1,2-ethanedithiol
  • 2-Hydrazinylpyridine
  • Urea
  • 2-Bromopyridine
  • 1-acetyl-1,2,4-triazolo[4,3-a]pyridinium-3-olate
  • Diethylamine

DownStream

  • 2-(3-CHLOROPROPYL)-1,2,4-TRIAZOL-[4,3-A]PYRIDINE-3 (2H)-ONE
  • Trazodone
  • 7-benzyl-7,8-diaza-1-azoniabicyclo[4.3.0]nona-1,3,5-trien-9-one
  • dl-1,2-diphenyl-1,2-ethanedithiol

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

  • 5-Bromo[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
  • 6-BroMo[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
  • 8-Bromo[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
  • 7-Chloro[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
  • 8-Methyl[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
  • 8-chloro-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
  • Methyl 6-carbamothioylpyridine-3-carboxylate
  • 2,2-Dichloro-1-(3-chloro-2,6-difluorophenyl)ethanol
  • Methyl 6-(2-amino-1,3-thiazol-4-yl)pyridine-3-carboxylate
  • Methyl 6-(4-aminobut-1-en-2-yl)pyridine-3-carboxylate
  • 2-Chloro-4-ethoxy-5-methylbenzaldehyde
  • 3-Bromo-5-fluoro-1-(4-methoxybenzyl)-1H-1,2,4-triazole
  • 7-Phenyl-1,4-oxazepan-3-one
  • 7-(Trifluoromethyl)-1,4-oxazepan-3-one
  • 2-(2-Azido-1,1-difluoroethyl)thiophene
  • 2-Fluoro-2-[2-(morpholin-4-yl)phenyl]ethan-1-amine
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