Suzhou Yacoo Science Corporation was founded in 2003, specialized in Biological buffers, Diagnostic reagents, Medical intermediates and Electronic chemicals. We have our factory in Shandong Province to offer high-quality and low-price PIPES disodium salt for Yacoo customers.
Specification:
English Name：Piperazine-1,4-bis(2-ethanesulfonic acid) disodium salt
Molecular Formula：C8H16N2O6S2Na2
Molecular Wt：346.33
CAS：76836-02-7
Shelf life：two years
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SPECIFICATION PROPERTIES
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STANDARD
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Appearance
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White crystalline powder
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Assay,%
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99.0-101.0
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Solubility（20% aq.）
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Clear colorless solution
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Loss on drying,%
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≤3.0
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PH (1% aq.)
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9.2-10.0
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Ultraviolet absorbance（0.1M aq.）
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≤0.04
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Ultraviolet absorbance（0.1M aq.）
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≤0.02
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Usage:
PIPES is a member of the ethanesulfonic acid buffer series, first introduced by Good et al., developed to meet certain criteria: midrange pKa, maximum water solubility and minimum solubility in all other solvents, minimal salt effects, minimal change in pKa with temperature, chemically and enzymatically stable, minimal absorption in visible or UV spectral range and easily synthesized.
Since its pKa at 37°C is near physiological pH, it has applications in cell culture work. Sigma offers a Biotechnology Performance Certified Product (P1851), as well as several different salts for convenience in buffer preparation.
Buffers can be prepared by adding a solution of base to PIPES free acid, titrating to the appropriate pH, or by mixing equimolar solutions of the monosodium salt and the disodium salt, titrating to the appropriate pH.
Storage：room temperature
Packing: 25kg/Drum, or as your request
