5-Bromo-3-ethynyl-2-pyrazinamine(CAS: 1209289-08-6)

5-Bromo-3-ethynyl-2-pyrazinamine is a crystalline solid with a molecular weight of approximately 252.05 g/mol. It has a low solubility in water but is more soluble in polar organic solvents like dimethyl sulfoxide (DMSO). The compound is moderately reactive, particularly with nucleophiles, and can undergo substitution reactions. It is not highly volatile but may react with strong bases or acids under certain conditions.

5-Bromo-3-ethynyl-2-pyrazinamine is commonly synthesized through a multi-step process involving the formation of an intermediate pyrazine derivative, followed by bromination and ethynylation. The reaction typically uses reagents like bromine and ethyne in the presence of a suitable catalyst. The final product is isolated by recrystallization from a suitable solvent.

5-Bromo-3-ethynyl-2-pyrazinamine finds applications in pharmaceuticals, where it can be used as a precursor for the synthesis of other compounds with therapeutic potential. It is also utilized in the development of sensors and semiconductors due to its unique chemical properties.

Proper handling of 5-Bromo-3-ethynyl-2-pyrazinamine requires the use of personal protective equipment (PPE) such as gloves, lab coat, and safety goggles. It should be stored under inert conditions and handled in a fume hood to minimize exposure to air. Spills should be cleaned up using appropriate absorbent materials, and the area should be well-ventilated. Refer to the Safety Data Sheet (SDS) for detailed guidance on handling and storage.