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联系人 Mr. Wally
Nanjing economic development zone pharmaceutical industry garden 5thbuilding, Nanjing, Jiangsu Sheng
English Name:Piperazine*1, *-bisethanesulfonic acid Molecular Formula:C8H*8N2O6S2 Molecular Wt:**2.4 CASï&frac*4;********6 Appearance:Free flowing white powder Assay(potertiometric cal on dry substance):*9.5ï&frac*4; Enterprise Standard Application: it is an important PH stable reagent in biotic experiments. Appropriate PH is obtained by mixing mild acid and its conjugate ***** biological responses happen in neutral condition (usually PH **8), so the buffering range is required to be in PH **8. In addition, the form of acid-base of buffer should not chelate with some metallic ions. Characteristics of biological buffer: 1, Strong water-solubility; 2. Compatibility of the acid-base dissociation balance; 3. Low membrance penetration rate; 4. Low metal chelating ability; 5. High chemical stability; 6. Low absorption in ultraviolet and visible region.
