361011

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

98%

• Empirical Formula (Hill Notation): C₅H₄N₄
• CAS Number: 273-34-7
• Molecular Weight: 120.11
• MDL number: MFCD00134183
• UNSPSC Code: 12352100
• PubChem Substance ID: 24862015
• NACRES: NA.22

Properties

• assay: 98%
• mp: 208 °C (dec.) (lit.)
• SMILES string: c1cnc2nn[nH]c2c1
• InChI: 1S/C5H4N4/c1-2-4-5(6-3-1)8-9-7-4/h1-3H,(H,6,7,8,9)
• Inchi Key: VQNDBXJTIJKJPV-UHFFFAOYSA-N

Description

General description

1H-1,2,3-Triazolo[4,5-b]pyridine belongs to the class of triazolopyridine.[1] It reacts with europium under solvothermal conditions in pyridine to yield the homoleptic framework containing Eu^II centers that are icosahedrally coordinated by the 12 nitrogen atoms of six chelating ligands.[2] 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.[3]

Application

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[4]
• in the pesticide synthesis[5]
• as an entry to mesoionic heteropentalene derivatives[6]

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves