Fine Chemicals, Pharmaceutical Excipients, Natural Extracts manufacturer / supplier in China, offering Factory Supply High Quality Yellowish Powder 2′-Hydroxyacetophenone CAS No118-93-4, Pharma Raw Material Clavulanate Potassium and Silicon Dioxide (1: 1), Factory Direct Supply 2-Aminoacetophenone CAS No 551-93-9 and so on.