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ChemicalBook >> CAS DataBase List >>1H-1,2,3-Triazolo[4,5-b]pyridine

1H-1,2,3-Triazolo[4,5-b]pyridine

1H-1,2,3-Triazolo[4,5-b]pyridine Structure
1H-1,2,3-Triazolo[4,5-b]pyridine structure
CAS No.
273-34-7
Chemical Name:
1H-1,2,3-Triazolo[4,5-b]pyridine
Synonyms
1H<;Triazolopyridinol;4-AZABENZOTRIAZOLE;2,7-Diazabenzimidazole;2,7-Diaza-1H-benzimidazole;2H-triazolo[4,5-b]pyridine;1H-Pyrido[2,3-d]-v-triazole;1H-v-Triazolo[4,5-b]pyridine;1,2,3-Triazolo(5,4-b)pyridine;1H-Pyrido[2,3-d]-1,2,3-triazole
CBNumber:
CB4484899
Molecular Formula:
C5H4N4
Molecular Weight:
120.11
MDL Number:
MFCD00134183
MOL File:
273-34-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:52:51
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1H-1,2,3-Triazolo[4,5-b]pyridine Properties

Melting point 208 °C (dec.)(lit.)
Boiling point 230℃
Density 1.61
Flash point 93℃
storage temp. Inert atmosphere,Room Temperature
form powder
pka 3.15±0.20(Predicted)
color light brown
InChI 1S/C5H4N4/c1-2-4-5(6-3-1)8-9-7-4/h1-3H,(H,6,7,8,9)
InChIKey VQNDBXJTIJKJPV-UHFFFAOYSA-N
SMILES c1cnc2nn[nH]c2c1
CAS DataBase Reference 273-34-7(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-37/39
WGK Germany  3
TSCA  No
HS Code  2914.79.4000
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
0
2 0

1H-1,2,3-Triazolo[4,5-b]pyridine price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 361011 1H-1,2,3-Triazolo[4,5-b]pyridine 98% 273-34-7 5g $276 2026-04-30 Buy
TCI Chemical T1367 1H-1,2,3-Triazolo[4,5-b]pyridine >98.0%(HPLC)(T) 273-34-7 1g $72 2026-04-30 Buy
TCI Chemical T1367 1H-1,2,3-Triazolo[4,5-b]pyridine >98.0%(HPLC)(T) 273-34-7 5g $285 2026-04-30 Buy
Activate Scientific AS117292 1H-[1,2,3]Triazolo[4,5-b]pyridine 97% 273-34-7 1g $46 2026-06-04 Buy
Activate Scientific AS117292 1H-[1,2,3]Triazolo[4,5-b]pyridine 97% 273-34-7 5g $160 2026-06-04 Buy
Product number Packaging Price Buy
361011 5g $276 Buy
T1367 1g $72 Buy
T1367 5g $285 Buy
AS117292 1g $46 Buy
AS117292 5g $160 Buy

1H-1,2,3-Triazolo[4,5-b]pyridine Chemical Properties, Uses, Production

Uses

1H-1,2,3-Triazolo[4,5-b]pyridine (1,2,3-Triazolo(5,4-b)pyridine) may be used:

  • as starting reagent in the synthesis of 2,4,8,10-tetranitro-5H-pyrido[3″,2″:4′,5′] [1,2,3] triazolo [1′,2′:1,2] [1,2,3]- triazolo [5,4-b]-pyridin-6-ium inner salt
  • in the pesticide synthesis
  • as an entry to mesoionic heteropentalene derivatives

General Description

1H-1,2,3-Triazolo[4,5-b]pyridine belongs to the class of triazolopyridine. It reacts with europium under solvothermal conditions in pyridine to yield the homoleptic framework containing EuII centers that are icosahedrally coordinated by the 12 nitrogen atoms of six chelating ligands. The surface-enhanced Raman (SER) spectra of 1H-1,2,3-triazolo[4,5-b]pyridine adsorbed on silver hydrosols is studied in the region 3500-100cm-1.

1H-1,2,3-Triazolo[4,5-b]pyridine Preparation Products And Raw materials

Raw materials

Preparation Products

1-Acetyl-1H-1,2,3-triazolo[4,5-b]pyridine

1H-1,2,3-Triazolo[4,5-b]pyridine Suppliers

Global Suppliers ( 94)
Supplier Tel Email Country ProdList Advantage
Nanjing Henghua Pharmaceutical Technology Co., Ltd 15862800858 173990752@qq.com China 25 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Nanjing Habo Medical Technology Co., Ltd. 13376080562 13376090521 sales@habotech.com China 724 60
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10265 58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66113011 13913916777 cfzhang@aikonchem.com China 19902 55
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
9ding chemical ( Shanghai) Limited 4009209199 sales@9dingchem.com China 22497 55
Supplier Advantage
Nanjing Henghua Pharmaceutical Technology Co., Ltd 58
J & K SCIENTIFIC LTD. 76
TCI (Shanghai) Development Co., Ltd. 81
Energy Chemical 61
Nanjing Habo Medical Technology Co., Ltd. 60
Shanghai Hanhong Scientific Co.,Ltd. 64
Hangzhou Sage Chemical Co., Ltd. 58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 55
TOKYO CHEMICAL INDUSTRY CO., LTD. 80
9ding chemical ( Shanghai) Limited 55

1H-1,2,3-Triazolo[4,5-b]pyridine Spectrum

1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE(273-34-7)MS1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE(273-34-7)1HNMR1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE(273-34-7)13CNMR1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE(273-34-7)IR11H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE(273-34-7)IR21H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE(273-34-7)Raman

273-34-7 (1H-1,2,3-Triazolo[4,5-b]pyridine) Related Search:

2-(7-Azabenzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate 7-Azabenzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate HOAt (3-Hydroxy-3H-1,2,3-triazolo[4,5-b]pyridinato-O)tri-1-pyrrolidinylphosphonium hexafluorophosphate HATU
8-Chloro[1,2,4]triazolo[4,3-a]pyridine 98% 6-Bromo-3-(N-ethylamino)-[1,2,4]triazolo[4,3-a]pyridine 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one 8-Bromo-[1,2,4]triazolo[1,5-a]pyridine 5-Bromo-[1,2,4]triazolo[1,5-a]pyridine
2-Amino-7-chloro-5-oxo-5H-(1)benzopyrano-(2,3-b)-pyridine-3-carbonitrile 6-Bromo-1,2,4-triazolo[4,3-1]pyridine 1H-1,2,3-Triazolo[4,5-b]pyridine 1-Acetyl-1H-1,2,3-triazolo[4,5-b]pyridine 1,2,4-Triazolo[4,3-a]pyridine-3-acetonitrile,5,6,7,8-tetrahydro-(9CI)
6-Bromo-8-nitro[1,2,4]triazolo[4,3-a]pyridine 1,2,4-Triazolo[4,3-a]pyridine,6-nitro-(9CI) 8-Bromo-6-methyl-[1,2,4]triazolo[1,5-a]pyridine

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1H-v-Triazolo[4,5-b]pyridine 2,7-Diaza-1H-benzimidazole 2,7-Diazabenzimidazole 1H-1,2,3-Triazolo[4,5-b]pyridine 98% 1H-1,2,3-Triazolo[4,5-b]pyridine 4-AZABENZOTRIAZOLE 1H-1,2,3-TRIAZOLO[4,5-B]PYRIDIN-3-OL 1,2,3-Triazolo(5,4-b)pyridine Triazolopyridinol 1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE 98+% 2H-[1,2,3]triazolo[4,5-b]pyridine 2H-triazolo[4,5-b]pyridine 1H-Pyrido[2,3-d]-1,2,3-triazole 1H-Pyrido[2,3-d]-v-triazole 1H-1,2,3-triazole [4,5-B] pyridine 1H< 1H-1,2,3-Triazolo[4,5-b]pyridine 273-34-7 TRIAZOLE Building Blocks Benzotriazoles Heterocyclic Building Blocks API intermediates BenzotriazolesBuilding Blocks Building Blocks Heterocyclic Building Blocks Triazoles