Fibronectin is found in interstitial matrix and plasma. The principal function of fibronectin appears to be in cellular migration during wound healing and development. It can be used as a thin coating on tissue culture surfaces to promote attachment, spreading and proliferation of a variety of cell types.

Quality controlled by SDS-PAGE and tested and found negative for bacteria, fungi and mycoplasma. Source material tested for hepatitis B antigen and HIV-1 antibody.