Pharmaceutical IntermediateCAS 1451-82-7 Chemical 2-Bromo-4′ -Methylpropiophenone Powder in Stock China Factory, Find details about China CAS 1451-82-7, 2-Bromo-4′-Methylpropiophenone from CAS 1451-82-7 Chemical 2-Bromo-4′ -Methylpropiophenone Powder in Stock China Factory