7-Chloro-1H-pyrazolo[4,3-b]pyridine

Name: 7-Chloro-1H-pyrazolo[4,3-b]pyridine
Brand: ChemScene
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CAS No. 94220-43-6
Cat. No. CS-0043440
Purity≥95%
MDL No.MFCD11846497

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
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7-Chloro-1H-pyrazolo[4,3-b]pyridine|CS-0043440

Structure of 94220-43-6

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General Information

CAS No. 94220-43-6
Cat. No. CS-0043440
Purity ≥95%
MDL No. MFCD11846497
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₄ClN₃
Molecular Weight 153.57
Synonym(s) 7-CHLORO-1-METHYL-1H-PYRAZOLO[4,3-B]PYRIDINE
SMILES ClC1=C(NN=C2)C2=NC=C1

Description

7-Chloro-1H-pyrazolo[4,3-b]pyridine is a heterocyclic scaffold featuring a chlorinated pyrazolopyridine core with enhanced electron-deficient character. This structural motif integrates readily into medicinal chemistry campaigns, serving as a key pharmacophore in kinase inhibitors and CNS-targeted therapeutics. The chlorine substituent enables site-specific derivatization through palladium-catalyzed cross-coupling reactions. Bench-stable and moisture-tolerant, it offers reliable performance in synthetic workflows across diverse reaction conditions.

Application

7-Chloro-1H-pyrazolo[4,3-b]pyridine serves as a versatile heterocyclic building block in medicinal chemistry, enabling efficient access to bioactive scaffolds through palladium-catalyzed cross-coupling reactions. Its chloro substituent facilitates direct functionalization at the C7 position, while the fused pyrazolo[4,3-b]pyridine core exhibits favorable stability and compatibility with diverse reaction conditions. This compound functions as a key intermediate in the synthesis of kinase inhibitors and other pharmaceutical candidates, offering predictable reactivity and straightforward purification.

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Computational Chemistry Data

TPSA 41.57
LogP 1.6113
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Key Words

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7-Chloro-1H-pyrazolo[4,3-b]pyridine

CAS No. 94220-43-6

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