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密理博,391333,HEPES, Sodium Salt, ULTROL Grade - CAS 75277-39-3 - Calbiochem
重要规格表
| Empirical Formula | CAS # |
|---|
| C₈H₁₇N₂O₄S·Na
| 75277-39-3
|
| Description
|
| Overview | 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. |
| Catalogue Number | 391333 |
| Brand Family |
Calbiochem®
|
| Synonyms | N-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid, Na |
| Product Information
|
| CAS number | 75277-39-3 |
| Form | White solid |
| Hill Formula | C₈H₁₇N₂O₄S·Na |
| Chemical formula | C₈H₁₇N₂O₄S·Na |
| Hygroscopic |
Hygroscopic
|
| PKA | 7.6 at 20°C |
| Quality Level | MQ100
|
| Biological Information
|
| Purity | ≥99% by titration (dry basis) |
| Physicochemical Information
|
| Contaminants | chloride: <0.01%; sulfate: <0.05% |
| Heavy metals | <1 ppm |
| Storage and Shipping Information
|
| Ship Code |
Ambient Temperature Only
|
| Toxicity |
Standard Handling
|
| Storage |
+15°C to +30°C
|
| Hygroscopic |
Hygroscopic
|
| Do not freeze |
Ok to freeze
|
