2-Bromo-5-chloropyrazine

• CAT Number: L045261
• CAS Number: 912773-21-8
• Molecular Formula: C4H2BrClN2
• Molecular Weight: 193.43
• Purity: ≥95%
• IUPAC Name: 2-bromo-5-chloropyrazine
• InChI: InChI=1S/C4H2BrClN2/c5-3-1-8-4(6)2-7-3/h1-2H
• InChIKey: UXCPLGLOAZWCKO-UHFFFAOYSA-N
• SMILES: C1=C(N=CC(=N1)Br)Cl

2-Bromo-5-chloropyrazine（Cat No.:L045261）is a halogenated heteroaromatic compound featuring a pyrazine ring substituted with a bromine atom at the 2-position and a chlorine atom at the 5-position. This dual-halogenated structure provides reactive handles for sequential or selective cross-coupling reactions such as Suzuki, Stille, or Buchwald–Hartwig couplings. Its electron-deficient pyrazine core enhances its utility in the synthesis of bioactive molecules, particularly in medicinal and agrochemical research. The compound serves as a versatile intermediate for building complex heterocyclic scaffolds in drug discovery, materials science, and the development of functional organic compounds.