HEPES;7365-45-9;4-(2-hydroxyerhyl)piperazine-1-erhanesulfonic acid

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HEPES;7365-45-9;4-(2-hydroxyerhyl)piperazine-1-erhanesulfonic acid
Posting date : May 12, 2014
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30-
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Product ID:TQBB015 Name:HEPES Specification/price :25KG / DRUM Rank:Ultra Pure Grade Company: CAS:7365-45-9 English Name:4-(2-hydroxyerhyl)piperazine-1-erhanesulfonic acid Molecular Formula:C8H18N2O4S Molecular Wt:238.31 Appearance:Free flowing white powder Assay(potertiometric cal on dry substance):99.8% Enterprise Standard Application: it is an important PH stable reagent in biotic experiments. Appropriate PH is obtained by mixing mild acid and its conjugate base. Many biological responses happen in neutral condition (usually PH 6-8), so the buffering range is required to be in PH 6-8. 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.

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