Product Details
Place of Origin: hubei
Brand Name: desheng
Certification: ISO9000
Model Number: CAS 7365-45-9
Payment & Shipping Terms
Minimum Order Quantity: 20kg
Price: Detailed discussion
Packaging Details: 20kg / box
Delivery Time: 5 days
Payment Terms: L/C,D/P,T/T,Western Union
Supply Ability: 5t/week
Appearance: |
White Powder |
Model: |
Hepes |
Manufacturer: |
Desheng |
Packing: |
500g / Box |
Appearance: |
White Powder |
Model: |
Hepes |
Manufacturer: |
Desheng |
Packing: |
500g / Box |
In the world of cell culture, culture medium is not only the "food" for cells, but also the "home" they rely on for survival. The stability of this' home 'directly determines the health status of cells and the reliability of experimental data. Among numerous environmental parameters, the stability of pH value is undoubtedly the core cornerstone for maintaining the balance of this home.
|
Product Name |
4-Hydroxyethylpiperazine ethanesulfonic acid |
Chemical abbreviation |
HEPES buffer |
|
CAS Number |
7365-45-9 |
Product Appearance |
White crystalline powder |
|
Molecular Weight |
238.305 |
Molecular Formula |
C8H18N2O4S |
|
Density |
1.07 g/mL at 20 °C |
Melting Point |
234-238 °C |
|
Storage Conditions |
Room temperature, away from light and moisture |
Purity |
More than 99% |
|
Standard Packaging |
500g/bottle, 25kg/cardboard drum |
Manufacturer |
Hubei Xindesheng |
The Mystery of Buffers: The Art of Dynamic Balance
In order to maintain the stability of the pH of the culture medium, scientists have introduced biological buffering agents. The reason why these buffering agents can resist acid-base shocks is that they are a type of "amphoteric" molecule. When the pH of the culture medium drops due to cell metabolism and acid production, buffering agents can step forward and bind excess hydrogen ions; And when the environment becomes alkaline, it can release hydrogen ions to neutralize hydroxide ions. Through this dynamic dissociation and binding, buffering agents control the pH fluctuations of the system within a very small range.
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HEPES Powder
However, there is no free lunch in the world. The dissociation equilibrium constant (pKa) of most traditional buffering agents is extremely temperature sensitive. This means that when the cell culture bottle is placed in a 37 ℃ carbon dioxide incubator from room temperature, the pH of the culture medium may have quietly drifted, potentially putting pressure on the growth of sensitive cells.
HEPES: Sea Needle under Temperature Change Environment
It is in this context that HEPES (4-hydroxyethylpiperazine ethanesulfonic acid) has demonstrated its unique value. As an excellent zwitterionic buffer, the most prominent feature of HEPES is that its pKa value is minimally affected by temperature. Whether at room temperature or in a constant temperature incubator, it can provide almost consistent buffering capacity, ensuring the continuity of the pH environment from operation to cultivation throughout the entire process.
Moreover, HEPES has a wide effective buffering range that precisely covers the optimal pH range for the growth of most mammalian cells. Its powerful buffering capacity can effectively cope with rapid pH changes caused by high-density cell culture or open operation, building a solid acid-base defense line for cells.
Safety considerations: Ideal choice for low toxicity and high efficiency
The safety of any component added to the culture medium is the primary consideration. After extensive application verification, low concentrations of HEPES exhibit excellent biocompatibility and have no toxic effects on the vast majority of cell types. This makes it an ideal auxiliary component for supporting cell growth, maintaining cell state, and short-term cell preservation. Researchers can confidently add HEPES to the formula and focus on the experiment itself without worrying about the basic stability of the cultivation environment.
In summary, HEPES has become a powerful assistant for optimizing pH management in modern cell culture due to its excellent temperature stability, strong buffering capacity, and reliable safety. Its synergistic effect with carbonates provides a more stable and safe growth microenvironment for various types of cells, helping you achieve more reliable and reproducible results in every exploration.
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Product packaging
As a HEPES buffer manufacturer, Desheng strictly monitors product quality and sets up a quality department to inspect batches of products. Only after the packaging and quality meet the standards can they be sold from the factory. Therefore, Desheng has received unanimous praise from customers. If you have any relevant intentions, please click on the website to inquire about details and purchase!