Life Science Buffers
Balanced salt solutions and powders used for molecular, protein, nucleic acid, and cell biology applications including cell culture, electrophoresis, ELISA, and chromatography processes; available in a variety of formulations and grades.
Buffer solutions serve to keep pH (acidity or alkalinity) nearly constant in a variety of chemical and biological applications. For example, a bicarbonate buffer helps maintain the pH of blood, a buffered saline maintains cellular contents at a consistent pH level, and buffers help maintain a narrow pH range for enzymes to function correctly.
Most biological samples used in research are kept at a pH of about 7.4. Common biological buffers used for tissue culture include Dulbeccos phosphate buffered saline (PBS), Tris base, HEPES, MOPS, PIPES, and other formulations developed for specific cell lines or applications. Most buffers used in cell culture are also DNase-, RNase-, and protease-free.
The choice of buffer for a particular biological reaction or site depends on several factors:
- Temperature
- Desired or target pH
- Buffer toxicity (to the system)
- Buffer interactions with other system components
Sigma Aldrich Fine Chemicals Biosciences PIPES | 5625-37-6 | MFCD00006159 | 100g
PIPES | 99% | MW: 307.32 | 5625-37-6 | MFCD00006159 | 100g
Sigma Aldrich Fine Chemicals Biosciences PIPES disodium salt >=99% (titration) | 76836-02-7 | MFCD00064349 | 1KG
PIPES disodium salt >=99% (titration) | Purity: >=99% (titration) | Mol Wt: 346.33 | 76836-02-7 | MFCD00064349 | 1KG
Sigma Aldrich Fine Chemicals Biosciences BIS-TRIS BioPerformance Certified, suitable for cell culture, suitable for insect cell culture, >=98.0% | 6976-37-0 | MFCD00002853 | 500G
BIS-TRIS BioPerformance Certified, suitable for cell culture, suitable for insect cell culture, >=98.0% | Purity: >=98.0% | Mol Wt: 209.24 | 6976-37-0 | MFCD00002853 | 500G
Research Products International Corp TAPS, 5 KG
pKa(25°:C): 8.4. The working pH range in aqueous solution is 7.7-9.1.
Teknova 1M HEPES, pH 7.5, 20L Bag, Sterile. 4 Pack.
HEPES solution is a Goods buffer that is commonly used in cell culture and biochemical applications. It is well known for its ability to maintain pH level, making it an essential part of any experiment that requires a stable pH. It has a buffering range of 6.8 - 8.2.
Alkali Scientific MOPSO Sodium Salt, 500 G
MOPSO Sodium Salt, 500 G, is a high-quality buffering reagent used to stabilize pH in laboratory experiments, particularly those involving proteins, nucleic acids, and enzyme reactions. MOPSO is known for its ability to maintain a stable pH in the range of 6.5 to 7.9, which is essential for many biochemical assays and protocols. This larger 500 g package is ideal for high-volume or repeated experiments and provides a cost-effective solution for laboratories working on large-scale studies or industrial applications. MOPSO is widely used in cell culture, protein analysis, and other critical research areas requiring reliable pH control.
Bioworld ACES, 100 g
ACES, High Purity Grade N-[carbamoylmethyl]-2-Aminoethane-sulfonic acidpKa: (20°C): 6.8+0.1Appearance: White crystalsHS Code : 29241900Melting Point: >220 °C (dec.)(lit.)PH Value: 6.1-7.5
Medchemexpress LLC MES hydrate | 1266615-59-1 | MFCD00149409 | 99.9% | 10 G
MES (2-Morpholinoethanesulphonic acid) hydrate is an amphoteric ion buffer with a buffer capacity ranging from pH 5.5-7.0. It is classified as a Good's buffer and is widely used in biochemistry and molecular biology experiments, including cell culture, enzyme activity determination, electrophoresis, and protein studies. This zwitterionic buffer provides effective buffering capacity around pH 6.15. Its pKa value changes with temperature, a factor to consider when used at varying temperatures. MES hydrate exhibits good buffering properties in biological experiments and has a poor affinity for metal ions, making it suitable for studies involving such ions.
- Amphoteric ion buffer
- Buffer capacity ranging pH 5.5-7.0
- Widely used in biochemistry and molecular biology experiments
- Effective buffering capacity at approximately pH 6.15
- Poor affinity with metal ions
Chem-Impex International, Inc. 3-Cyclohexylamino-1-propanesulfonic acid | 1135-40-6 | MFCD00003837 | 250G
3-Cyclohexylamino-1-propanesulfonic acid, 1135-40-6, MFCD00003837, 250G
Medchemexpress LLC MOPS (sodium salt) | 71119-22-7 | 99.8% | 25 G
MOPS sodium salt is a buffering agent utilized in biological applications. MOPS buffer is effective in maintaining the pH of mammalian cell culture media and has been shown to significantly improve the thermal stability of BSA. It is relatively safe for short-term experiments, though it may reduce cell viability after 4 hours, suggesting experimental duration limits of 4-12 hours.
- Buffering agent for biological research.
- Maintains pH in mammalian cell culture media.
- Significantly improves the thermal stability of BSA.
- Relatively safe for short-term experiments, though it may reduce cell viability after 4 hours, suggesting experimental duration limits of 4-12 hours.
- Can be used in the preparation of keratinocyte and microbial culture media.
![Research Products International Corp HEPES, Sodium Salt [N-(2-Hydroxyethyl) piperazine-N'-(2-ethanesulfonic acid)], 1 Kilogram](https://assets.fishersci.com/TFS-Assets/CCG/product-images/VN00006095-H75050-1000.0.JPG-250.jpg)
Research Products International Corp HEPES, Sodium Salt [N-(2-Hydroxyethyl) piperazine-N'-(2-ethanesulfonic acid)], 1 Kilogram
pKa (20°C): 7.45-7.65
pH Range: 6.8-8.2
Sigma Aldrich Fine Chemicals Biosciences POPSO hydrate >=99% (titration) | 68189-43-5 (anhydrous) | 100G
POPSO hydrate >=99% (titration) | Purity: >=99% (titration) | 68189-43-5 (anhydrous) | 100G