2 2-dibromo-3-nitrilo propionamide (dbnpa) July 8, 2019 16 32 64 128 2 2-dibromo-3-nitrilo-propionamide 2 2-dibromo-3-nitrilopropionamid 2 2-dibromo-3-nitrilopropionamide synthesis 2 2-dibromopropan