4-Bromo-6-chloropyridazin-3(2H)-one

Name: 4-Bromo-6-chloropyridazin-3(2H)-one
Brand: ChemScene
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CAS No. 933041-13-5
Cat. No. CS-W006982
Purity≥96%
MDL No.MFCD21364604

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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4-Bromo-6-chloropyridazin-3(2H)-one|CS-W006982

Structure of 933041-13-5

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General Information

CAS No. 933041-13-5
Cat. No. CS-W006982
Purity ≥96%
MDL No. MFCD21364604
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₄H₂BrClN₂O
Molecular Weight 209.43
Synonym(s) 5-bromo-3-chloro-1H-pyridazin-6-one
SMILES ClC1=NNC(=O)C(Br)=C1

Description

4-Bromo-6-chloropyridazin-3(2H)-one features a fused heterocyclic core with strategically positioned halogen substituents, enabling direct functionalization in cross-coupling and derivatization workflows. This bench-stable compound integrates readily into bioactive scaffolds, offering enhanced metabolic stability and tunable electronic properties for medicinal chemistry applications.

Application

4-Bromo-6-chloropyridazin-3(2H)-one serves as a versatile heterocyclic building block in medicinal chemistry, enabling efficient late-stage functionalization via palladium-catalyzed cross-coupling reactions. The molecule exhibits excellent bench stability and compatibility with diverse reaction conditions, facilitating the construction of complex pyridazinone scaffolds. Its orthogonal reactivity profile supports sequential derivatization, making it ideal for the synthesis of targeted API candidates and functionalized heterocycles in high-throughput screening campaigns.

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS05,GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H318-H332-H335
Precautionary Statements : P260-P261-P264-P270-P271-P280-P301+P310-P302+P352-P304+P341-P304+P340-P305+P351+P338-P310-P312-P330-P332+P313-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

TPSA 45.75
LogP 1.1858
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyridazine compounds

Key Words

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4-Bromo-6-chloropyridazin-3(2H)-one

CAS No. 933041-13-5

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