2-Chloro-4-methyl-5-nitropyridine

Name: 2-Chloro-4-methyl-5-nitropyridine
Brand: ChemScene
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CAS No. 23056-33-9
Cat. No. CS-D0901
Purity≥98%
MDL No.MFCD00010688

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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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2-Chloro-4-methyl-5-nitropyridine|CS-D0901

Structure of 23056-33-9

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Description

2-Chloro-4-methyl-5-nitropyridine features a pyridine core functionalized with chlorine, methyl, and nitro groups at the 2-, 4-, and 5-positions respectively. This electron-deficient heterocycle serves as a key intermediate in medicinal chemistry, enabling direct coupling reactions through the chloro group while the nitro moiety facilitates downstream transformations. The methyl substituent enhances solubility and modulates reactivity.

Application

2-Chloro-4-methyl-5-nitropyridine serves as a versatile building block in medicinal chemistry, enabling palladium-catalyzed cross-coupling reactions due to its reactive chloropyridine functionality. The ortho-chloro group facilitates efficient C–C and C–N bond formation under standard conditions, while the methyl and nitro substituents provide steric and electronic modulation. This compound exhibits good bench stability and is compatible with common protecting group strategies, making it valuable for constructing heterocyclic scaffolds in API development.

General Information

CAS No. 23056-33-9
Cat. No. CS-D0901
Purity ≥98%
MDL No. MFCD00010688
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₅ClN₂O₂
Molecular Weight 172.57
Synonym(s) 2-Chloro-5-nitro-4-picoline; 2-Chloro-4-methyl-5-nitropyridine
SMILES ClC1=CC(C)=C([N+]([O-])=O)C=N1

Computational Chemistry Data

TPSA 56.03
LogP 1.95162
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 1

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H315-H319-H335
Precautionary Statements : P261-P264-P271-P280-P302+P352-P304+P340-P362+P364-P405-P501

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Other Classifications

Building Blocks Functional Group Nitro compounds

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Key Words

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2-Chloro-4-methyl-5-nitropyridine

CAS No. 23056-33-9

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