5-Bromo-2-chloro-3-nitropyridine

Name: 5-Bromo-2-chloro-3-nitropyridine
Brand: ChemScene
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CAS No. 67443-38-3
Cat. No. CS-D0810
Purity≥97%
MDL No.MFCD00222270

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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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*For research and further manufacturing use only, not for direct human use.

5-Bromo-2-chloro-3-nitropyridine|CS-D0810

Structure of 67443-38-3

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Description

5-Bromo-2-chloro-3-nitropyridine features a tri-functional pyridine core with distinct halogen and nitro substituents enabling precise diversification in heterocyclic synthesis. The electron-deficient ring facilitates nucleophilic substitution, while the bromo and chloro groups offer orthogonal reactivity for sequential coupling. This scaffold integrates readily into pharmaceutical intermediates and functional materials under standard conditions.

Application

5-Bromo-2-chloro-3-nitropyridine serves as a versatile building block in medicinal chemistry, enabling palladium-catalyzed cross-coupling reactions due to its complementary halogen reactivity. The nitro group provides a handle for selective reduction and downstream functionalization, while the ortho-chloro and bromo substituents offer orthogonal reactivity for sequential transformations. Its bench-stable crystalline form facilitates handling and purification, making it well-suited for multi-step synthesis of heterocyclic scaffolds and API intermediates.

General Information

CAS No. 67443-38-3
Cat. No. CS-D0810
Purity ≥97%
MDL No. MFCD00222270
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₂BrClN₂O₂
Molecular Weight 237.44
Synonym(s) None
SMILES ClC1=C(C=C(Br)C=N1)[N+]([O-])=O

Computational Chemistry Data

TPSA 56.03
LogP 2.4057
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 1

Safety Information

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GHS Pictogram :	GHS No : GHS05,GHS06
Signal Word : Danger	UN#: 2811
Class : 6.1	Packing Group : Ⅲ
Hazard Statements : H301-H315-H318-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362-P405-P501

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Other Classifications

Bioactive Molecules Dye and Bio-assay Reagents

Building Blocks Functional Group Chloride

Building Blocks Functional Group Nitro compounds

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Key Words

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5-Bromo-2-chloro-3-nitropyridine

CAS No. 67443-38-3

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