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| Product Name | HEPES pH adjustment reagent for biological and in vitro diagnostic systems, CAS 7365-45-9 |
| Catalog No. | ATR-B-YJL-0304 |
| Description | HEPES can serve as both a biological buffer and a pH-adjusting reagent. Its pKa of 7.55 at 25°C is close to physiological pH, allowing pH control with minimal disturbance to biological systems. It is chemically stable, does not react with most biomolecules or form complexes with metal ions, and dissolves readily in water. |
| Intended Use | pH adjustment and buffering in biomedical research and in vitro diagnostic reagent systems. |
| Principle / Technology | A near-physiological pKa enables controlled pH adjustment while limiting chemical and biological interference. |
| Package Specifications | 25 kg per drum. |
| Product Form | White crystalline powder. |
| Quality Control | Purity >99%; supplied as a white crystalline powder. |
| Key Features | Near-physiological pKa; chemically stable; minimal reactivity with most biomolecules; no metal-ion complexation; convenient aqueous preparation. |
| Purity | >99% |
| Molecular Weight | 238.30 |
| pH Range / Optimal pH | pKa 7.55 at 25°C; near physiological pH. |
| Application Notes / Precautions | Its stability, limited biomolecular reactivity and lack of metal-ion complexation help reduce interference in biological and diagnostic systems. |
| Molecular Formula | C8H18N2O4S |
| Appearance | White crystalline powder. |
| Solubility | Easily soluble in water, allowing convenient preparation. |
| CAS Number | 7365-45-9 |
For research use only, not for clinical use.
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