5-Bromo-2-chloro-3-methoxypyrazine

Name: 5-Bromo-2-chloro-3-methoxypyrazine
Brand: ChemScene
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CAS No. 89283-94-3
Cat. No. CS-W019229
Purity≥95%
MDL No.MFCD18250187

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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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5-Bromo-2-chloro-3-methoxypyrazine|CS-W019229

Structure of 89283-94-3

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General Information

CAS No. 89283-94-3
Cat. No. CS-W019229
Purity ≥95%
MDL No. MFCD18250187
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₄BrClN₂O
Molecular Weight 223.46
Synonym(s) 5-bromo-2-chloro-3-methoxy-pyrazine
SMILES COC1=C(Cl)N=CC(Br)=N1

Description

5-Bromo-2-chloro-3-methoxypyrazine is a halogenated pyrazine derivative featuring complementary reactive sites for cross-coupling and functionalization. The bromo group enables palladium-catalyzed transformations, while the chloro moiety offers orthogonal reactivity under selective conditions. This electron-deficient heterocycle integrates readily into complex molecular architectures.

Application

5-Bromo-2-chloro-3-methoxypyrazine serves as a versatile heterocyclic building block for medicinal chemistry and materials science. Its orthogonal halogenation pattern enables sequential cross-coupling reactions, facilitating the construction of complex pyrazine-based scaffolds. The methoxy group enhances solubility and provides a handle for further functionalization. Bench-stable and amenable to standard Pd-catalyzed transformations, it is well-suited for iterative synthesis workflows in API development.

Safety Information

Download SDS

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 1.9011
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 1

Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazine compounds

Key Words

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5-Bromo-2-chloro-3-methoxypyrazine

CAS No. 89283-94-3

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