| PIPES Sodium is a biological buffer (zwitterionic) designed by Good, et al., and typically referred to as Goods buffer useful in cell culture media formulations. Selection of biological buffer systems should include the following criteria: exclusion by biological membranes, low absorption between 240 and 700nm, chemically stable, and stable to temperature and concentration changes. Appearance: White Powder Solubility (2%): Colorless, clear, complete Purity (Titration): 99% Loss on Drying: 3% pH (1% dH2O): 4.0-5.0 A280 (1% dH2O): 0.040 A260( 1% dH2O): 0.050 DNase: As reported RNase: As reported Protease: As reported Storage and Stability: Powder may be stored at room temperature. Stable for 12 months. |
