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80638

PIPES disodium salt

≥99.0% (calc. based on dry substance, T)

Synonym(s):

1,4-Piperazinediethanesulfonic acid disodium salt, Piperazine-1,4-bis(2-ethanesulfonic acid) disodium salt

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About This Item

Empirical Formula (Hill Notation):
C8H16N2Na2O6S2
CAS Number:
76836-02-7
Molecular Weight:
346.33
EC Number:
278-562-3
UNSPSC Code:
12161700
MDL number:
MFCD00064349
Beilstein/REAXYS Number:
9453872
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assay

≥99.0% (calc. based on dry substance, T)

impurities

≤10% water

useful pH range

6.1-7.5

pKa (25 °C)

6.8

solubility

H2O: 0.5 g/mL, clear, colorless

SMILES string

[Na+].[Na+].[O-]S(=O)(=O)CCN1CCN(CC1)CCS([O-])(=O)=O

InChI

1S/C8H18N2O6S2.2Na/c11-17(12,13)7-5-9-1-2-10(4-3-9)6-8-18(14,15)16;;/h1-8H2,(H,11,12,13)(H,14,15,16);;/q;2*+1/p-2

InChI key

GMHSTJRPSVFLMT-UHFFFAOYSA-L

Other Notes

For the measurement of pH of blood and other physiological media

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Sodium 1,4-piperazinediethanesulfonate monohydrate ("Pipes") for measurement of pH of blood and other physiological media.
R N Roy et al.
Clinical chemistry, 26(13), 1919-1920 (1980-12-01)