2-Bromo-3,5-dichloropyrazine

Name: 2-Bromo-3,5-dichloropyrazine
Brand: ChemScene
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CAS No. 1206249-40-2
Cat. No. CS-0041070
Purity≥97%
MDL No.MFCD14581976

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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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General Information

CAS No. 1206249-40-2
Cat. No. CS-0041070
Purity ≥97%
MDL No. MFCD14581976
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₄HBrCl₂N₂
Molecular Weight None
Synonym(s) 2-Bromo-3.5-dichloropyrazine
SMILES ClC1=CN=C(Br)C(Cl)=N1

Description

2-Bromo-3,5-dichloropyrazine is a halogenated pyrazine derivative featuring complementary reactive sites for cross-coupling and functionalization. This electron-deficient heterocycle integrates readily into synthetic scaffolds requiring precise substitution patterns. The molecule exhibits enhanced stability under standard bench conditions and serves as a key intermediate in the development of bioactive compounds and advanced materials.

Application

2-Bromo-3,5-dichloropyrazine serves as a versatile heterocyclic building block in medicinal chemistry and agrochemical synthesis. Its orthogonal halogenation pattern enables selective metal-catalyzed cross-coupling reactions, particularly Suzuki-Miyaura and Buchwald-Hartwig transformations, under mild conditions. The molecule exhibits good bench stability and facilitates efficient functionalization of pyrazine scaffolds with high regiocontrol, making it valuable for constructing complex nitrogen-containing frameworks.

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 25.78
LogP 2.5459
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazine compounds

Key Words

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2-Bromo-3,5-dichloropyrazine

CAS No. 1206249-40-2

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