528131
PIPES, Free Acid, ULTROL® Grade
Piperazine-N,N′-bis(2-ethanesulfonic Acid)
For general questions please contact our Customer Service:
Merck KGaA
Frankfurter Str. 250
64293 Darmstadt
Germany
Phone: +49 6151 72-0
Fax: +49 6151 72 2000
01 June 2012
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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.
| Product information | |||
|---|---|---|---|
| Form | White solid | ||
| Molar mass | 302.4 | ||
| Purity | ≥98% by titration (dry basis) | ||
| Contaminants | Heavy metals: <10 ppm | ||
| Heavy metals | <10 ppm | ||
| PKA | 6.8 at 20°C | ||
| Solubility | Aqueous buffers or H2O | ||
| Chemical formula | C8H18N2O6S2 | ||
| CAS number | 5625-37-6 | ||
| Merck USA index | 14, 7479 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | +15°C to +30°C | ||
| Ship |
Ambient Temperature Only
Standard Handling |
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