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
- (1)
- (1)
- (3)
- (1)
- (107)
- (1)
- (2)
- (1)
- (2)
- (2)
- (69)
- (2)
- (1)
- (1)
- (1)
- (1)
- (10)
- (3)
- (2)
- (10)
- (6)
- (2)
- (4)
- (2)
- (10)
- (1)
- (5)
- (5)
- (110)
- (107)
- (1)
- (1)
- (1)
- (1)
- (1)
- (11)
- (2)
- (7)
- (1)
- (1)
- (1)
- (2)
- (6)
- (8)
- (23)
- (1)
- (12)
- (20)
- (1)
- (4)
- (1)
- (12)
- (1)
- (3)
- (1)
- (53)
- (6)
- (5)
- (34)
- (129)
- (2)
- (1)
- (26)
- (2)
- (1)
- (6)
- (1)
- (1)
- (3)
- (19)
- (2)
- (1)
- (26)
- (1)
- (1)
- (6)
- (7)
- (3)
- (8)
- (1)
- (86)
- (148)
- (8)
- (6)
- (10)
- (1)
- (1)
- (4)
- (1)
- (1)
- (1)
- (1)
- (1)
- (2)
- (2)
- (17)
- (143)
- (6)
- (3)
- (1)
- (3)
- (3)
- (7)
- (5)
- (3)
- (8)
- (1)
- (595)
- (5)
- (4)
- (4)
- (114)
- (23)
- (12)
- (48)
- (5)
- (4)
- (2)
- (5)
- (125)
- (2)
- (13)
- (10)
- (3)
- (14)
- (49)
- (1)
- (2)
- (31)
- (13)
- (26)
- (2)
- (4)
- (9)
- (9)
- (23)
- (45)
- (5)
- (55)
- (5)
- (13)
- (1)
- (3)
- (2)
- (3)
- (1)
- (9)
- (1)
- (94)
- (1)
- (3)
- (4)
- (4)
- (3)
- (3)
- (3)
- (10)
- (3)
- (31)
- (4)
- (3)
- (9)
- (3)
- (45)
- (1)
- (3)
- (1)
- (4)
- (1)
- (1)
- (2)
- (1)
- (1)
- (3)
- (5)
- (1)
- (4)
- (3)
- (5)
- (1)
- (10)
- (10)
- (6)
- (4)
- (2)
- (5)
- (3)
- (2)
- (5)
- (10)
- (1)
- (10)
- (1)
- (2)
- (3)
- (2)
- (2)
- (2)
- (5)
- (7)
- (1)
- (2)
- (10)
- (4)
- (2)
- (1)
- (1)
- (4)
- (3)
- (3)
- (1)
- (2)
- (1)
- (3)
- (3)
- (2)
- (13)
- (4)
- (1)
- (4)
- (3)
- (2)
- (2)
- (2)
- (1)
- (4)
- (2)
- (4)
- (3)
- (10)
- (1)
- (1)
- (1)
- (1)
- (14)
- (1)
- (38)
- (2)
- (1)
- (2)
- (9)
- (2)
- (3)
- (8)
- (2)
- (1)
- (2)
- (3)
- (1)
- (1)
- (1)
- (32)
- (1)
- (5)
- (8)
- (2)
- (14)
- (5)
- (1)
- (3)
- (5)
- (1)
- (22)
- (1)
- (62)
- (11)
- (1)
- (43)
- (1)
- (11)
- (2)
- (1)
- (2)
- (1)
- (9)
- (1)
- (38)
- (1)
- (1)
- (7)
- (1)
- (1)
- (5)
- (1)
- (2)
- (1)
- (1)
- (21)
- (5)
- (3)
- (1)
- (17)
- (3)
- (1)
- (4)
- (4)
- (1)
- (6)
- (1)
- (4)
- (77)
- (93)
- (3)
- (6)
- (21)
- (53)
- (1)
- (72)
- (1)
- (27)
- (1)
- (1)
- (51)
- (15)
- (5)
- (2)
- (29)
- (1)
- (1)
- (10)
- (5)
- (5)
- (4)
- (2)
- (1)
- (7)
- (12)
- (2)
- (7)
Filtered Search Results
| Physical Form | Liquid |
|---|---|
| Recommended Storage | Ambient temperatures |
Thermo Scientific Chemicals Imidazole, 0.5M buffer soln., pH 7.5
CAS: 288-32-4 Molecular Formula: C3H4N2 Molecular Weight (g/mol): 68.08 MDL Number: MFCD00005183 InChI Key: RAXXELZNTBOGNW-UHFFFAOYSA-N IUPAC Name: 1H-imidazole SMILES: N1C=CN=C1
| CAS | 288-32-4 |
|---|---|
| Molecular Weight (g/mol) | 68.08 |
| MDL Number | MFCD00005183 |
| SMILES | N1C=CN=C1 |
| IUPAC Name | 1H-imidazole |
| InChI Key | RAXXELZNTBOGNW-UHFFFAOYSA-N |
| Molecular Formula | C3H4N2 |
Enzyme storage buffer in PBS and glycerol, autoclaved, Thermo Scientific™
For frozen storage of enzymes
| Physical Form | Liquid |
|---|---|
| Chemical Name or Material | Enzyme storage buffer in PBS and glycerol |
| Recommended Storage | Ambient temperatures |
| Name Note | low endotoxin |
|---|---|
| Storage Note 1 | 2° to 8°C |
| Color | Colorless |
| Physical Form | Liquid |
| Chemical Name or Material | BES-buffered saline (2X) |
| TSCA | No |
| Recommended Storage | Keep cold |
HEPES Sodium Salt, Cell Culture Reagent Grade, ≥98.0%, MP Biomedicals™
CAS: 75277-39-3 Molecular Formula: C8H17N2NaO4S Molecular Weight (g/mol): 260.28 MDL Number: MFCD00036463 InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M Synonym: 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt,N-(2-Hydroxyethyl)piperazine-N-(2-ethanesulfonic acid) sodium salt PubChem CID: 2724248 ChEBI: CHEBI:46758 IUPAC Name: sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate SMILES: [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1
| PubChem CID | 2724248 |
|---|---|
| CAS | 75277-39-3 |
| Molecular Weight (g/mol) | 260.28 |
| ChEBI | CHEBI:46758 |
| MDL Number | MFCD00036463 |
| SMILES | [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1 |
| Synonym | 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt,N-(2-Hydroxyethyl)piperazine-N-(2-ethanesulfonic acid) sodium salt |
| IUPAC Name | sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate |
| InChI Key | RDZTWEVXRGYCFV-UHFFFAOYSA-M |
| Molecular Formula | C8H17N2NaO4S |
PIPES, ≥99%, Molecular Biology Reagent Grade, MP Biomedicals™
CAS: 5625-37-6 Molecular Formula: C8H18N2O6S2 Molecular Weight (g/mol): 302.36 MDL Number: MFCD00006159 InChI Key: IHPYMWDTONKSCO-UHFFFAOYSA-N Synonym: Piperazine-N, N'-bis[2-ethanesulfonic acid] PubChem CID: 79723 ChEBI: CHEBI:44933 IUPAC Name: 2-[4-(2-sulfoethyl)piperazin-1-yl]ethanesulfonic acid SMILES: C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)O
| PubChem CID | 79723 |
|---|---|
| CAS | 5625-37-6 |
| Molecular Weight (g/mol) | 302.36 |
| ChEBI | CHEBI:44933 |
| MDL Number | MFCD00006159 |
| SMILES | C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)O |
| Synonym | Piperazine-N, N'-bis[2-ethanesulfonic acid] |
| IUPAC Name | 2-[4-(2-sulfoethyl)piperazin-1-yl]ethanesulfonic acid |
| InChI Key | IHPYMWDTONKSCO-UHFFFAOYSA-N |
| Molecular Formula | C8H18N2O6S2 |
Phosphate Buffered Saline (PBS) 1X without Ca and Mg, pH 7.2, Cytiva Hyclone™
Phosphate buffered saline (PBS) 1X, pH 7.2 is a physiological salt solution commonly found in many cell culture applications.
Hanks' Balanced Salts, Without Sodium Bicarbonate, MP Biomedicals™
Hanks' Balanced Salts, Without Sodium Bicarbonate, Orange Powder
| Color | Orange |
|---|---|
| Physical Form | Powder |
| pH | 6.0 to 7.0 (before adjustment with sodium bicarbonate) |
MP Biomedicals™ MOPS SDS Running Buffer for Bis-Tris Gels, Powder
Powder MOPS buffer salts to make PAGE buffer.
Thermo Scientific Chemicals BIS-TRIS propane, 0.2M buffer soln., pH 9.0
CAS: 64431-96-5 Molecular Formula: C11H26N2O6 Molecular Weight (g/mol): 282.337 MDL Number: MFCD00004689 InChI Key: HHKZCCWKTZRCCL-UHFFFAOYSA-N PubChem CID: 125132 ChEBI: CHEBI:40947 IUPAC Name: 2-[3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]propylamino]-2-(hydroxymethyl)propane-1,3-diol SMILES: C(CNC(CO)(CO)CO)CNC(CO)(CO)CO
| PubChem CID | 125132 |
|---|---|
| CAS | 64431-96-5 |
| Molecular Weight (g/mol) | 282.337 |
| ChEBI | CHEBI:40947 |
| MDL Number | MFCD00004689 |
| SMILES | C(CNC(CO)(CO)CO)CNC(CO)(CO)CO |
| IUPAC Name | 2-[3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]propylamino]-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | HHKZCCWKTZRCCL-UHFFFAOYSA-N |
| Molecular Formula | C11H26N2O6 |
Thermo Scientific Chemicals HEPES, 0.5M buffer soln., pH 7.0
CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N PubChem CID: 23831 ChEBI: CHEBI:42334 SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1
| PubChem CID | 23831 |
|---|---|
| CAS | 7365-45-9 |
| Molecular Weight (g/mol) | 238.30 |
| ChEBI | CHEBI:42334 |
| MDL Number | MFCD00006158 |
| SMILES | OCCN1CCN(CCS(O)(=O)=O)CC1 |
| InChI Key | JKMHFZQWWAIEOD-UHFFFAOYSA-N |
| Molecular Formula | C8H18N2O4S |
Thermo Scientific Chemicals Tris(hydroxymethyl)aminomethane, Electrophoresis Grade, 99.5%
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: TRIS PubChem CID: 6503 ChEBI: CHEBI:9754 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O
| PubChem CID | 6503 |
|---|---|
| CAS | 77-86-1 |
| Molecular Weight (g/mol) | 121.136 |
| ChEBI | CHEBI:9754 |
| MDL Number | MFCD00004679 |
| SMILES | C(C(CO)(CO)N)O |
| Synonym | TRIS |
| IUPAC Name | 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | LENZDBCJOHFCAS-UHFFFAOYSA-N |
| Molecular Formula | C4H11NO3 |