PIPES BUFFER 99.5% CAS: 5625-37-6

PIPES  CAS: 5625-37-6 PIPES (piperazine-N,N′-bis(2-ethanesulfonic acid)) is a frequently used buffering agent in biochemistry. CAS NO: 5625-37-6 EINECS NO 227-057-6 Ingredients Piperazine-N,N'-bis(2-ethanesulfonic) acid Content of active ingredients ≥99.5% Grade AR/ACS equivalent Molecular Formula C8H18N2O6S2 Molecular Weight : 302.37 Buffering Range 6.1~7.5 Packaging Pkg of 1Kg/10Kg/25Kg Storage Room Temperature  Items Specification  Apparence White Crystalline Powder APHA (Color, 0.5M NaOH solution)  ≤20 Solubility (Turbidity,0.5M NaOH solution) Clear Assay (Titration by HCI) ≥99.5% Infrared Spectrum Complies Conforms to Structure UV Absorbance 260mm 0.1M aqueous solution absorbance≤0.05 UV Absorbance 280mm 0.1M aqueous solution absorbance≤0.05 UV Absorbance 260mm 0.5M aqueous solution absorbance≤0.10 UV Absorbance 290mm 0.5M aqueous solution absorbance≤0.10 Loss on drying(105℃ for 3 Hours) Wt% ≤0.5% Sulfated Ash （650℃ for 3 Hours）Wt% ≤0.1% Heavy Metals Pb ≤5ppm Iron Fe ≤5ppm Calcium Ca ≤10ppm Usage Pipes Free Acid is used in various biological application such as electrophoresis protein separation and purification. In general to work with other buffers to provide a stable pH buffer environment.