391333
HEPES, Sodium Salt, ULTROL® Grade
N-2-Hydroxyethylpiperazine-N′-2-ethanesulfonic Acid, Na
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Merck KGaA
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15 February 2012
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A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.55 at 25°C.
Absorbance (1.0 mM, H2O, 260 nm):<0.10.
| Alternatives | |
|---|---|
| 391340 | HEPES, Free Acid, Molecular Biology Grade |
| 391338 | HEPES, Free Acid, ULTROL® Grade |
| 375368 | HEPES, Free Acid, ULTROL® Grade, 1 M Solution |
| Alternative products for HEPES, Sodium Salt, ULTROL® Grade | |
| 391340 | HEPES, Free Acid, Molecular Biology Grade |
| 391338 | HEPES, Free Acid, ULTROL® Grade |
| 375368 | HEPES, Free Acid, ULTROL® Grade, 1 M Solution |
| Accessories forHEPES, Sodium Salt, ULTROL® Grade |
| Product information | |||
|---|---|---|---|
| Form | White solid | ||
| Molar mass | 260.3 | ||
| Hygrocopic | Yes | ||
| Purity | ≥99% by titration (dry basis) | ||
| Contaminants | chloride: <0.01%; sulfate: <0.05% | ||
| Heavy metals | <1 ppm | ||
| PKA | 7.6 at 20°C | ||
| Solubility | H2O | ||
| Chemical formula | C8H17N2O4S·Na | ||
| CAS number | 75277-39-3 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | +15°C to +30°C | ||
| Ship |
Ambient Temperature Only
Standard Handling |
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