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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

$9 - $678
Product name: 1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE
CAS: 273-34-7
MF: C5H4N4
MW: 120.11
EINECS:
MDL Number:MFCD00134183
Synonyms: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-v-Triazolo[4,5-b]pyridine

Price43 Properties Safety Information Description

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aablocks
AccelPharmtech
ACHEMBLOCK
Activate Scientific
AK Scientific
Alichem
Ambeed
Chemenu
Chem-Impex
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Sigma-Aldrich
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100mg
250mg
1g
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25G

Manufactureraablocks
Product numberAA003EAH
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 95%
Packaging5g
Price$76
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA003EAH
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 95%
Packaging10g
Price$143
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA003EAH
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 95%
Packaging1g
Price$23
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA003EAH
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 95%
Packaging250mg
Price$19
Updated2026-05-28
Buy

ManufacturerAccelPharmtech
Product numberDC0317
Product description3H-1,2,3-Triazolo[4,5-b]pyridine 98.00%
Packaging1G
Price$170
Updated2026-05-21
Buy

ManufacturerACHEMBLOCK
Product numberT101260
Product description3H-[1,2,3]triazolo[4,5-b]pyridine 97%
Packaging5G
Price$110
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberAD276089
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 95%
Packaging5G
Price$110
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberT101260
Product description3H-[1,2,3]triazolo[4,5-b]pyridine 97%
Packaging5G
Price$110
Updated2026-05-25
Buy

ManufacturerACHEMBLOCK
Product numberT101260
Product description3H-[1,2,3]triazolo[4,5-b]pyridine 97%
Packaging25G
Price$375
Updated2026-05-25
Buy

ManufacturerACHEMBLOCK
Product numberAD276089
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 95%
Packaging25G
Price$375
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberT101260
Product description3H-[1,2,3]triazolo[4,5-b]pyridine 97%
Packaging25G
Price$375
Updated2026-05-27
Buy

ManufacturerActivate Scientific
Product numberAS117292
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 97%
Packaging5g
Price$160
Updated2026-06-04
Buy

ManufacturerActivate Scientific
Product numberAS117292
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 97%
Packaging1g
Price$46
Updated2026-06-04
Buy

ManufacturerActivate Scientific
Product numberAS117292
Product description1H-[1,2,3]Triazolo[4,5-b]pyridine 97%
Packaging25g
Price$678
Updated2026-06-04
Buy

ManufacturerAK Scientific
Product number2585AB
Product description1H-1,2,3-Triazolo[4,5-b]pyridine
Packaging1g
Price$49
Updated2021-12-16
Buy

ManufacturerAK Scientific
Product number2585AB
Product description1H-1,2,3-Triazolo[4,5-b]pyridine
Packaging5g
Price$175
Updated2021-12-16
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA003EAH	1H-[1,2,3]Triazolo[4,5-b]pyridine 95%	5g	$76	2026-05-28	Buy
aablocks	AA003EAH	1H-[1,2,3]Triazolo[4,5-b]pyridine 95%	10g	$143	2026-05-28	Buy
aablocks	AA003EAH	1H-[1,2,3]Triazolo[4,5-b]pyridine 95%	1g	$23	2026-05-28	Buy
aablocks	AA003EAH	1H-[1,2,3]Triazolo[4,5-b]pyridine 95%	250mg	$19	2026-05-28	Buy
AccelPharmtech	DC0317	3H-1,2,3-Triazolo[4,5-b]pyridine 98.00%	1G	$170	2026-05-21	Buy
ACHEMBLOCK	T101260	3H-[1,2,3]triazolo[4,5-b]pyridine 97%	5G	$110	2026-05-27	Buy
ACHEMBLOCK	AD276089	1H-[1,2,3]Triazolo[4,5-b]pyridine 95%	5G	$110	2026-05-27	Buy
ACHEMBLOCK	T101260	3H-[1,2,3]triazolo[4,5-b]pyridine 97%	5G	$110	2026-05-25	Buy
ACHEMBLOCK	T101260	3H-[1,2,3]triazolo[4,5-b]pyridine 97%	25G	$375	2026-05-25	Buy
ACHEMBLOCK	AD276089	1H-[1,2,3]Triazolo[4,5-b]pyridine 95%	25G	$375	2026-05-27	Buy
ACHEMBLOCK	T101260	3H-[1,2,3]triazolo[4,5-b]pyridine 97%	25G	$375	2026-05-27	Buy
Activate Scientific	AS117292	1H-[1,2,3]Triazolo[4,5-b]pyridine 97%	5g	$160	2026-06-04	Buy
Activate Scientific	AS117292	1H-[1,2,3]Triazolo[4,5-b]pyridine 97%	1g	$46	2026-06-04	Buy
Activate Scientific	AS117292	1H-[1,2,3]Triazolo[4,5-b]pyridine 97%	25g	$678	2026-06-04	Buy
AK Scientific	2585AB	1H-1,2,3-Triazolo[4,5-b]pyridine	1g	$49	2021-12-16	Buy
AK Scientific	2585AB	1H-1,2,3-Triazolo[4,5-b]pyridine	5g	$175	2021-12-16	Buy

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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)

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	P-Codes
H315	Causes skin irritation	Skin corrosion/irritation	Category 2	Warning	P264, P280, P302+P352, P321,P332+P313, P362
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning	P264, P280, P305+P351+P338,P337+P313P
H335	May cause respiratory irritation	Specific target organ toxicity, single exposure;Respiratory tract irritation	Category 3	Warning

Precautionary statements:

P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P264	Wash hands thoroughly after handling.
P264	Wash skin thouroughly after handling.
P271	Use only outdoors or in a well-ventilated area.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352	IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

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 saltin the pesticide synthesisas an entry to mesoionic heteropentalene derivatives

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GIHI CHEMICALS CO.,LIMITED

HANGZHOU LEAP CHEM CO., LTD.

Aladdin Scientific

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1H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE

Properties

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Description

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