1H-Pyrazolo[4,3-b]pyridin-3(2H)-one

Name: 1H-Pyrazolo[4,3-b]pyridin-3(2H)-one
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CAS No. 51617-92-6
Cat. No. CS-0155787
Molecule weight135.12
Purity≥98%
MDL No.MFCD11656330

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1H-Pyrazolo[4,3-b]pyridin-3(2H)-one|CS-0155787

Structure of 51617-92-6

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General Information

CAS No. 51617-92-6
Cat. No. CS-0155787
Purity ≥98%
MDL No. MFCD11656330
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₅N₃O
Molecular Weight 135.12
Synonym(s) 1,2-DIHYDRO-3H-PYRAZOLO[4,3-B]PYRIDIN-3-ONE
SMILES O=C1NNC2=CC=CN=C21

Description

1H-Pyrazolo[4,3-b]pyridin-3(2H)-one is a heterocyclic scaffold featuring a fused pyrazole and pyridine ring system with a lactam functionality. This core structure exhibits enhanced stability and favorable solubility in polar solvents, enabling straightforward integration into medicinal chemistry campaigns. The molecule's electron-deficient aromatic system facilitates directed functionalization at the 5- and 6-positions, supporting rapid diversification for target-specific ligand development.

Application

1H-Pyrazolo[4,3-b]pyridin-3(2H)-one serves as a versatile heterocyclic building block in medicinal chemistry, enabling efficient access to bioactive scaffolds through standard coupling and functionalization reactions. Its inherent stability and compatibility with diverse reaction conditions facilitate straightforward derivatization, making it valuable for the synthesis of kinase inhibitors and other pharmacologically relevant compounds.

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

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Computational Chemistry Data

TPSA 61.54
LogP 0.2512
H_Acceptors 2
H_Donors 2
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Key Words

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1H-Pyrazolo[4,3-b]pyridin-3(2H)-one

CAS No. 51617-92-6

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