Blocking Peptide. KLF4 Blocking Peptide, Concentration: 0.5 mg/ml, Storage: -20 degree C, Appearance: Colorless liquid, Formulation: 50 ug (0.5 mg/ml) in phosphate buffered saline (PBS), pH 7.2, containing 50% glycerol, 1% BSA and 0.02% thimerosal, Size: 50ug