The Human Hematopoietic Stem Cell Expansion Cytokine Package contains the key components required for ex vivo human hematopoietic stem cells.The package contains the following 4 vials: 100ug Human Flt3 Ligand 100ug Human SCF 100ug Human TPO 10ug Human IL-3 To request a CoA or MSDS for the components of the package, please Contact Us.