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

Name: 5-Chloro-1H-pyrazolo[4,3-b]pyridine
Brand: ChemScene
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CAS No. 94220-45-8
Cat. No. CS-D0857
Purity≥97%
MDL No.MFCD05663984

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
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Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
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5-Chloro-1H-pyrazolo[4,3-b]pyridine|CS-D0857

Structure of 94220-45-8

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General Information

CAS No. 94220-45-8
Cat. No. CS-D0857
Purity ≥97%
MDL No. MFCD05663984
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₄ClN₃
Molecular Weight 153.57
Synonym(s) 1H-pyrazolo[4,3-b]pyridine, 5-chloro-
SMILES ClC1=CC=C(NN=C2)C2=N1

Description

5-Chloro-1H-pyrazolo[4,3-b]pyridine is a heterocyclic scaffold featuring a chlorinated pyrazolopyridine core, offering enhanced electron deficiency and improved metabolic stability. This structural motif integrates readily into medicinal chemistry campaigns, enabling efficient access to bioactive compounds through cross-coupling and nucleophilic substitution reactions under standard conditions.

Application

5-Chloro-1H-pyrazolo[4,3-b]pyridine serves as a versatile heterocyclic building block for medicinal chemistry and catalytic synthesis. The chloro substituent at the 5-position enables efficient cross-coupling reactions, including Suzuki-Miyaura and Buchwald-Hartwig transformations, facilitating rapid diversification of pyrazolopyridine scaffolds. Its stability under standard reaction conditions and compatibility with diverse functional groups make it ideal for constructing bioactive molecules and pharmaceutical intermediates.

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
Precautionary Statements : P264-P270-P330-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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5-Chloro-1H-pyrazolo[4,3-b]pyridine

CAS No. 94220-45-8

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