Engreen Biosystem is a registered company and manufacturer of research-use bio-chemical reagents. Our has been established for 9 years enjoyed great reputation around the world. We specialize in cell transfection, culture, protein expression virus ...

Sunma Biotechnology Co., Ltd. develops life science products ,we are specialized in agarose, transfection reagent ,selective antibiotics G418, etc.. Our widely used China because of our highly quality product and excellent service. also exporter on OEM ...

novel transfection reagent: Polycysteine-dendritic poly(His,Arg)1:5 203USD/2g It performs better than PEI in the production of r- proteins.