528131
PIPES, Free Acid, ULTROL® Grade
A zwitterionic N-substituted aminosulfonic acid useful in the pH range of 6.1-7.5. Has a pKa 6.76 at 25°C. Absorbance (0.5%, 0.25 N NaOH, 260 nm):0.18.
Synonym(s):
Piperazine-N,Nʹ- bis(2-ethanesulfonic Acid), Piperazine-N,Nʹ-bis(2-ethanesulfonic Acid)
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About This Item
Empirical Formula (Hill Notation):
C8H18N2O6S2
CAS Number:
Molecular Weight:
302.37
UNSPSC Code:
12352200
MDL number:
Quality Segment
assay
≥98% dry basis (titration)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
color
white
pKa (20 °C)
6.8
solubility
aqueous buffer: 50 mg/mL, water: soluble
cation traces
heavy metals: <10 ppm
shipped in
ambient
storage temp.
15-25°C
InChI
1S/C8H18N2O6S2.Na/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;+1/p-1
InChI key
OGGAIRCLBMGXCZ-UHFFFAOYSA-M
General description
A zwitterionic N-substituted aminosulfonic acid useful in the pH range of 6.1-7.5. Has a pKa 6.76 at 25°C.
Absorbance (0.5%, 0.25 N NaOH, 260 nm): <0.18.
Zwitterionic N-substituted aminosulfonic acid, active in the pH range of 6.0-8.5. Has a pKa of 6.8 at 20°C.
Preparation Note
Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 3 months at 4°C.
From Catalog:
Desc. Field- replaced "active in the pH range 6.0-8.5"
From Catalog:
Desc. Field- replaced "active in the pH range 6.0-8.5"
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Standard Handling (A)
Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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