Human Fibronectin is prepared from fresh human plasma. Ideal reagent for tissue culture studies and protein-protein interactions. Thaw the fibronectin by placing the vial in a 37 C water bath and leaving it undisturbed until completely thawed. Do not disturb the vial at any time during the thawing process. If the vial is disturbed or removed prior to complete thawing, the fibronectin will form a gel and be unusable. Mix very gently with pipette after thawing. Vortexing, excessive agitation, repeated freezing and thawing of fibronectin are not recommended.