4-Bromo-3-nitropyridine

Name: 4-Bromo-3-nitropyridine
Brand: ChemScene
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CAS No. 23056-44-2
Cat. No. CS-W006293
Purity≥95%
MDL No.MFCD04112576

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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+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

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Structure of 23056-44-2

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Description

4-Bromo-3-nitropyridine features a pyridine core bearing both bromo and nitro substituents at adjacent positions, enabling direct functionalization via cross-coupling or nucleophilic substitution. This electron-deficient heterocycle integrates readily into synthetic scaffolds for pharmaceuticals and agrochemicals, offering high reactivity under standard conditions.

Application

4-Bromo-3-nitropyridine serves as a versatile building block in heterocyclic synthesis, enabling palladium-catalyzed cross-coupling reactions and nucleophilic substitution processes. The bromo group facilitates C–C bond formation under standard conditions, while the nitro group provides a directing effect for regioselective functionalization. Its bench-stable nature and compatibility with common protecting groups make it well-suited for multi-step synthesis of complex pyridine derivatives and pharmaceutical intermediates.

General Information

CAS No. 23056-44-2
Cat. No. CS-W006293
Purity ≥95%
MDL No. MFCD04112576
Storage -20°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₃BrN₂O₂
Molecular Weight 202.99
Synonym(s) pyridine, 4-bromo-3-nitro-
SMILES O=[N+](C1=C(Br)C=CN=C1)[O-]

Computational Chemistry Data

TPSA 56.03
LogP 1.7523
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 1

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS05
Signal Word : Danger	UN#: 1759
Class : 8	Packing Group : Ⅲ
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P280-P302+P352

Quality Control

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Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Key Words

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4-Bromo-3-nitropyridine

CAS No. 23056-44-2

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