391340
HEPES, Free Acid, Molecular Biology Grade
N-2-Hydroxyethylpiperazine-N′-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
24 May 2012
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A zwitterionice N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.48 at 25°C.
| Alternatives | |
|---|---|
| 391338 | HEPES, Free Acid, ULTROL® Grade |
| 375368 | HEPES, Free Acid, ULTROL® Grade, 1 M Solution |
| 391333 | HEPES, Sodium Salt, ULTROL® Grade |
| Alternative products for HEPES, Free Acid, Molecular Biology Grade | |
| 391338 | HEPES, Free Acid, ULTROL® Grade |
| 375368 | HEPES, Free Acid, ULTROL® Grade, 1 M Solution |
| 391333 | HEPES, Sodium Salt, ULTROL® Grade |
| Accessories for HEPES, Free Acid, Molecular Biology Grade |
| Product information | |||
|---|---|---|---|
| Form | White solid | ||
| Molar mass | 238.3 | ||
| Purity | ≥99% by alkalimetric assay | ||
| Contaminants | DNase, RNase, and protease: none detected | ||
| Heavy metals | ≤0.0005% | ||
| PKA | 7.55 | ||
| Solubility | Aqueous Basic Solutions or H2O | ||
| Chemical formula | C8H18N2O4S | ||
| RTECS | TL6809000 | ||
| CAS number | 7365-45-9 | ||
| Merck USA index | 14, 4654 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | +15°C to +30°C | ||
| Ship |
Ambient Temperature Only
Standard Handling |
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