HEPES
CAS:7365-45-9
English Name:4-(2-hydroxyerhyl)piperazine-1-erhanesulfonic acid
Molecular Formula:C8H18N2O4S
Molecular Wt:238.31
Appearance:Free flowing white powder
Assay(potertiometric cal on dry substance):99.8%.
Enterprise Standard.
Application: it is an important PH stable reagent in biotic experiments. Appropriate PH is obtained by mixing mild acid and its conjugate base. Many biological responses happen in neutral condition (usually PH 6-8), so the buffering range is required to be in PH 6-8. In addition, the form of acid-base of buffer should not chelate with some metallic ions.
Characteristics of biological buffer:
1, Strong water-solubility;
2. Compatibility of the acid-base dissociation balance;
3. Low membrance penetration rate;
4. Low metal chelating ability;
5. High chemical stability;
6. Low absorption in ultraviolet and visible region.
Packing:25KG / DRUM.
Other Name: HYDROXYETHYLPIPERAZINE ETHANE SULFONIC ACID INCI Name: HYDROXYETHYLPIPERAZINE ETHANE SULFONIC ACID Molecular Formula: C8H18N2O4S Molecular Weight: 238.3 Appearance: White powder Purity: 98% CAS NO.: 7365-45-9 EINECS No.: 230-907-9 Application: cosmetics and skin care products Supplier: ZHENYIBIO HYDROXYETHYLPIPERAZINE ETHANE SULFONIC ACID has a certain effect of softening cutin and assisting in whitening; in cosmetics, it is a hydrogen ion buffer, which can control a constant pH range for a long time. Hydroxyethylpiperazine ethane sulfonic acid is a very effective biological buffer, which can reform the stratum corneum and promote the metabolism of skin keratinocytes. It is an important mild exfoliating ingredient.
Introduction: 4-hydroxyethyl piperazine ethosulfonic acid (HEPES) is an important hydrogen ion buffer, which has a good buffer ability in the pH range of 6.8 to 8.2, and can control a constant pH for a long time. Using a concentration of 10 ~ 50mmol/L, the general culture medium containing 20mmol/L 4-hydroxyethyl piperazine taurine can have a good buffer capacity, and has no toxic effect on cells. Application: HEPES (4-hydroxyethyl piperazinethesulfonic acid) is a non-ionic amphoteric buffer with high polarity, and is inert to a variety of chemical reagents and enzymes. It does not participate in and interfere with the process of biochemical reactions, and has no inhibitory effect on enzyme chemical reactions. Therefore, it can be used specifically for the research of proteins and enzymes that are highly volatile and ph-sensitive to organelles and very volatile. Buffer solution preparation: (1)hepes buffer can be directly added to the prepared culture medium according to the desired concentration, and then filtered to remove bacteria. 2.38 g HEPES was added to each 1000ml of culture medium, the pH was adjusted to 7.2 with lNNaOH after dissolution, and the bacteria were removed by filtration before use. At this time, the concentration of HEPES was 10mmol/L. (2) 100x storage solution (lmol/L) could also be prepared. Before use, 99ml culture solution was added to lml storage solution, and the final concentration was 10mmol/L. lmol/L (100x) hepes buffer was prepared as follows: 23.8gHEPES was dissolved in 90ml double distilled water, the pH was adjusted to 7.5-8.0 with lNNaOH, and then the water was fixed to 100ml, filtered to remove bacteria, divided into vials (2ml/ bottle), and stored at 4�ºC or -20�ºC. Purpose: 1.Biological buffer; Reaction buffer, prehybridization buffer and hybridization buffer for isolation and analysis of RNA nuclear fraction; For RNA with T4RNA 2.Molecular biology grade is used for RNA3' -end labeling with T4 RNA ligase 3.Cell-cell adhesion, short-term cell aggregation culture, cleaning of tissue and cell buffer
4-Hydroxyethylpiperazine Ethane Sulfonic Acid (HEPES) is a zwitterionic buffer, white crystalline powder, soluble in water, it is a weak acid, its pH buffer range is 6.8-8.2, it is important in biochemical industry Biochemical preparations are also considered to be one of the important buffers in the field of biological research. As a veteran company with more than ten years of experience in producing HEPES, Desheng, the confidence we give to customers comes from our advantages in all aspects of products: 1. Advantages of PH range: The suitable culture environment for most cells is pH 7.2-pH 7.4, and the application range of Desheng HEPES buffer just falls between pH 6.8-pH 8.2, which is in line with the characteristics of the pH value needed for cell culture. Purity advantage: Desheng HEPES has a purity of >=99%, good water solubility, stable process, and can control a constant pH range for a long time. According to your application needs, we can provide a full range of product testing and special testing services. Reserve advantages: Desheng has a professional R&D and production team, specializing in the production of HEPES, with a daily output of 1-2 tons, and advanced production technology and equipment. There will be no long supply cycle or supply outage. For customers, we enjoy the advantage of trial equipment. Export advantages: Desheng is a professional manufacturer of biological buffers, with strong logistics capabilities and rich export experience. We export to more than 100 countries and have established a long-term cooperation intention. HEPES packaging advantages: Only after using a good product can you know whether it is a good product in your mind. Desheng is not a company that only manufactures products once. What we want is the trust and support of our customers. We recommend that you use our trial pack first when purchasing the product. Because we firmly believe that quality is the greatest sincerity to give back to customers.
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Supplier: High strength disperse dyes, mainly including disperse.red S-3GFL 150% ( red 54 ), disperse blue S-3BG 200% ( blue 79 ) and disperse yellow C-4G 200% ( yellow 211 )
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In many biological experiments, buffers are needed to maintain an effective pH value, and buffers are critical to the success or failure of the experiment. When choosing a buffer, first consider that the pH value in the experiment is consistent with the pH value range of the buffer, and consider whether the advantages and disadvantages of different buffers are suitable for your experiment. There are many types of biological buffers. In this article, we mainly discuss the preparation methods of several commonly used biological buffers. Prepare TRIS base and TRIS-HCL buffer Tris: To prepare 1 liter of 1M Tris buffer, first prepare to dissolve 121.14 grams of Tris powder in 750 mL of dH20, adjust to the desired pH value with concentrated hydrochloric acid, and fill to the final volume of 1L with dH2O. Tris HCl: To prepare 1 liter of 1M Tris HCl buffer, first dissolve 157.60 g of Tris-HCl in 750 mL of dH2O, adjust to the desired pH with 10N sodium hydroxide, and fill with dH2O to a final volume of 1L. Prepare HEPES buffer To prepare 1 liter of 1M HEPES buffer solution, first dissolve 238.3 grams of HEPES powder in 750 mL of dH2O, adjust to the desired pH with 10N sodium hydroxide, fill with dH2O to a final volume of 1L, and pass through a filter or autoclave The device is disinfected. Store the buffer at 4C. Prepare PIPES buffer To prepare 1 liter of 1M PIPES free acid buffer solution, first add 302.37 g of PIPES free acid to 600 mL of dH2O, adjust to the desired pH with 10N sodium hydroxide, and fill to the final volume of 1L with dH2O. Desheng is a professional manufacturer of biological buffers. At present, the company sells buffers such as TRIS, HEPES, PIPES, CAPS, MOPS, BICINE, etc., with sufficient supply, fast delivery, guaranteed quality, and a professional after-sales team. If you answer any questions, you can now apply for a free sample online for trial. Please feel free to contact us if you need it.
Supplier: 3,3',5,5-Tetramethylbenzidine(TMB), 3,3',5,5-Tetramethylbenzidine,drhydroxhloride (TMB-CL), 3,3',5,5-Tetramethylbenzidine sulfate(TMB-S), N-(3-sulfopropy)-3,3',5,5-tetramethylbenzidine,sodium salt(TMB-PS), N-Ethyl-N-(3-sulfopropyl)-3-methoxyaniline sodium salt(ADPS), N-ethyl-N-(3-sulfopropyl)-3-methylaniline,sodiu salt (TOPS) N-ethyl-N-(2-hydroxy-3-sulfopropyl)-3-methylaniline,sodium salt (TOOS), N,N-bis(4-sulfobutyl)-3-methylaniline,disodium salt (TODB) 3,5 -Dichloro-2-hydroxybenzenesulfonate (DHBS) 3-hydroxy-2,4,6-tribromobenzoic acid (TBHBA) 4-nitrophenyl phosphate,hexahydrate (PNPP) 5,5-Dithiobis(2-nitrobenzoic acid)product (DTNB) 3-(N,N-dimethyl)propane sulfonate (SDDAB) N-[2-Hydroxyerhyl]piperazine-N'-ethanesulfonic acid (HEPES), 3 -(N-Morpholino)propanesulfonic acid (MOPS), 3-(Cyclohexylamino)-1-propanesuhinic acid (CAPS), 2-[N,N-Bis(2-hydroxyethyl) amino]ethanesulfonic acid (BES), 2-(N-Morpholino) ethanesulfonic acid,monohydrate (MES) piperazine-N
