ROTI®Cell Insulin-Transferrin-Selenium, CELLPURE, 100x in EBSS, 10 ml, plasticROTICell Insulin Transferrin Selenium, CELLPURE, 100x in EBSS, Density (D) ~1 g cm, Boiling point (bp) 100 C, Storage temp. +2 to +8 C Sterile ITS (Insulin, Transferrin, Selenium) is a proven combination of growth factors for serum free cell culture. This chemically defined supplement reduces the required amount of animal components, such as FBS, in basal media. It is also routinely used in serum free media to enhance cell viability and proliferation.