Recombinant Trypsin-EDTA 1X in PBS w/o Calcium w/o Magnesium w/o Phenol Red -... Reference: L0941-100 Recombinant Trypsin is a genetically engineered protein expressed in E-Coli. As such it is totally animal free. Free from contaminating enzymes like chymotrysin as well as protease inhibitors. It is highly stable with a high purity (95%). It is widely used in insulin manufacturing, vaccines and cell culture applications. Download product flyer