PIPES

IUPAC name1,4-Piperazinediethanesulfonic acid
SynonymPiperazine-N,N?-bis(2-ethanesulfonic acid)
Molecular formulaC8H18N2O6S2
Molar mass302.37 g/mol
CAS number5625-37-6
AppearanceWhite powderDecomposes above 300 °C
Solubility in water1 g/L (100 °C)
CID Number79723
Useful pH Range6.1 – 7.5
pKa6.80 at 20°C6.76 at 25°C6.66 at 37°C

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