Pharmaceutical IntermediateChina 356783-29-4 3, 6-Difluoropyrazine-2-Carboxamide 3, 6-Difluoro-2-Pyrazinecarboxamide, Find details about China Organic Synthesis, Chemicals from 356783-29-4 3, 6-Difluoropyrazine-2-Carboxamide 3, 6-Difluoro-2-Pyrazinecarboxamide