5-Ethynyl-1H-pyrazolo[3,4-b]pyridine

Name: 5-Ethynyl-1H-pyrazolo[3,4-b]pyridine
Brand: ChemScene
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CAS No. 1207351-15-2
Cat. No. CS-0371726
Purity≥97%
MDL No.MFCD22187975

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Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
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5-Ethynyl-1H-pyrazolo[3,4-b]pyridine|CS-0371726

Structure of 1207351-15-2

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Description

5-Ethynyl-1H-pyrazolo[3,4-b]pyridine is a versatile heterocyclic scaffold featuring a terminal alkyne group that enables efficient copper-catalyzed click conjugation. The electron-deficient pyrazolopyridine core enhances reactivity in transition metal-coupling processes. This compound integrates readily into bioactive molecules and functional materials, offering robust stability under standard bench conditions.

Application

5-Ethynyl-1H-pyrazolo[3,4-b]pyridine serves as a versatile building block in medicinal chemistry, enabling efficient access to functionalized heterocycles via copper-catalyzed azide-alkyne cycloaddition (CuAAC). The terminal alkyne group exhibits high reactivity in click chemistry protocols, facilitating rapid assembly of triazole-linked scaffolds under mild conditions. Its stability and compatibility with diverse functional groups make it well-suited for modular synthesis workflows in API development and probe design.

General Information

CAS No. 1207351-15-2
Cat. No. CS-0371726
Purity ≥97%
MDL No. MFCD22187975
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₅N₃
Molecular Weight None
Synonym(s) 5-ethynyl-1H-pyrazolo[3,5-ethynyl-1H-pyrazolo[3,4-b]pyridine
SMILES C#CC1=CN=C(NN=C2)C2=C1

Computational Chemistry Data

TPSA 41.57
LogP 0.9392
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 0

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H312-H332
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P501

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Life Science Click Chemistry Reagents Alkyne

Chemical Biology Pharmaceutical Development and Drug Discovery Research Conjugation Chemistry/Click Chemistry Terminal Alkynes

Chemical Biology Conjugation Chemistry/Click Chemistry Terminal Alkynes

Key Words

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5-Ethynyl-1H-pyrazolo[3,4-b]pyridine

CAS No. 1207351-15-2

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