2-Bromo-5-methoxypyrazine

Name: 2-Bromo-5-methoxypyrazine
Brand: ChemScene
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CAS No. 143250-10-6
Cat. No. CS-W008616
Purity≥97%
MDL No.MFCD08235189

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

CAS No. 143250-10-6
Cat. No. CS-W008616
Purity ≥97%
MDL No. MFCD08235189
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₅BrN₂O
Molecular Weight 189.01
Synonym(s) None
SMILES COC1=CN=C(Br)C=N1

Description

2-Bromo-5-methoxypyrazine is a heterocyclic building block featuring a bromine at the 2-position and a methoxy group at the 5-position on the pyrazine core. This combination imparts enhanced reactivity in cross-coupling processes while maintaining stability under standard conditions. The electron-deficient pyrazine ring facilitates nucleophilic substitution, enabling efficient integration into pharmaceutical intermediates and functional materials.

Application

2-Bromo-5-methoxypyrazine serves as a versatile building block in medicinal chemistry, enabling palladium-catalyzed cross-coupling reactions due to its stable bromo functionality. The methoxy group enhances solubility and provides a handle for further functionalization. Its bench-stable nature and compatibility with standard coupling conditions make it well-suited for constructing complex heterocyclic scaffolds in API development.

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 35.01
LogP 1.2477
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 1

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazine compounds

Key Words

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2-Bromo-5-methoxypyrazine

CAS No. 143250-10-6

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