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
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Filtered Search Results
PBS, 10X Solution, Molecular Biology Grade
For biological research. Affymetrix/USB™ PBS, 10X Solution, Molecular Biology Grade is 0.2μm filtered and dispensed into durable, square nalgene bottles and upright carton.
| Formulation | 80.6 mM sodium phosphate, 19.4 mM potassium phosphate, 27 mM KCl and 1.37 M NaCl in high purity dH2O |
|---|---|
| Physical Form | Solution |
| pH | 7.4 |
| Recommended Storage | Ambient temperatures |
Thermo Scientific Chemicals Tris EDTA buffer, for molecular biology, DNAse, RNAse, Protease free ready to use, pH 8.0
CAS: 38641-82-6 Molecular Formula: C14H27N3O11 Molecular Weight (g/mol): 413.38 MDL Number: MFCD00236359 InChI Key: VLEIUWBSEKKKFX-UHFFFAOYSA-N Synonym: 2-Amino-2-(hydroxymethyl)-1, 3-propanediol,TRIS,Tris buffer,Tromethamine,Tromethane PubChem CID: 16218629 IUPAC Name: 2-({2-[bis(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetic acid; 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: NC(CO)(CO)CO.OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CC(O)=O
| PubChem CID | 16218629 |
|---|---|
| CAS | 38641-82-6 |
| Molecular Weight (g/mol) | 413.38 |
| MDL Number | MFCD00236359 |
| SMILES | NC(CO)(CO)CO.OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CC(O)=O |
| Synonym | 2-Amino-2-(hydroxymethyl)-1, 3-propanediol,TRIS,Tris buffer,Tromethamine,Tromethane |
| IUPAC Name | 2-({2-[bis(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetic acid; 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | VLEIUWBSEKKKFX-UHFFFAOYSA-N |
| Molecular Formula | C14H27N3O11 |
Thermo Scientific Chemicals HEPES sodium salt, 99+%, for molecular biology, DNAse, RNAse and Protease free
CAS: 75277-39-3 Molecular Formula: C8H17N2NaO4S Molecular Weight (g/mol): 260.28 MDL Number: MFCD00036463 InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M Synonym: 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid sodium salt PubChem CID: 2724248 ChEBI: CHEBI:46758 IUPAC Name: sodium;2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonate 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 | 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid sodium salt |
| IUPAC Name | sodium;2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonate |
| InChI Key | RDZTWEVXRGYCFV-UHFFFAOYSA-M |
| Molecular Formula | C8H17N2NaO4S |
Thermo Scientific Chemicals TRIS, 0.5M buffer soln., pH 6.8
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N 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 |
| IUPAC Name | 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | LENZDBCJOHFCAS-UHFFFAOYSA-N |
| Molecular Formula | C4H11NO3 |
Thermo Scientific Chemicals TES, 99%, for biochemistry
CAS: 7365-44-8 Molecular Formula: C6H15NO6S Molecular Weight (g/mol): 229.247 MDL Number: MFCD00007532 InChI Key: JOCBASBOOFNAJA-UHFFFAOYSA-N Synonym: 2-[Tris(hydroxymethyl)methylamino]-1-ethanesulfonic acid PubChem CID: 81831 ChEBI: CHEBI:44356 IUPAC Name: 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid SMILES: C(CS(=O)(=O)O)NC(CO)(CO)CO
| PubChem CID | 81831 |
|---|---|
| CAS | 7365-44-8 |
| Molecular Weight (g/mol) | 229.247 |
| ChEBI | CHEBI:44356 |
| MDL Number | MFCD00007532 |
| SMILES | C(CS(=O)(=O)O)NC(CO)(CO)CO |
| Synonym | 2-[Tris(hydroxymethyl)methylamino]-1-ethanesulfonic acid |
| IUPAC Name | 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid |
| InChI Key | JOCBASBOOFNAJA-UHFFFAOYSA-N |
| Molecular Formula | C6H15NO6S |
HEPES, 1M Solution, pH 7.3, Molecular Biology Grade, Ultrapure
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 Phosphate-buffered saline (DPBS, 10X), Dulbecco's formula
Used as a buffer system to maintain cell culture media in the physiological pH range. In combination with glucose, it provides the principal energy sources of cell metabolism. It is involved to irrigate, wash and dilute mammalian cells.
| Packaging | Plastic bottle |
|---|---|
| Physical Form | Liquid |
| Recommended Storage | Ambient temperatures |
Thermo Scientific Chemicals Tris(hydroxymethyl)aminomethane hydrochloride, Molecular Biology Grade, 99+%
CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 MDL Number: MFCD00012590 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonym: TRIS hydrochloride; 2-Amino-2-hydroxymethyl-1,3-propanediol hydrochloride PubChem CID: 93573 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl
| PubChem CID | 93573 |
|---|---|
| CAS | 1185-53-1 |
| Molecular Weight (g/mol) | 157.594 |
| MDL Number | MFCD00012590 |
| SMILES | C(C(CO)(CO)N)O.Cl |
| Synonym | TRIS hydrochloride; 2-Amino-2-hydroxymethyl-1,3-propanediol hydrochloride |
| IUPAC Name | 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride |
| InChI Key | QKNYBSVHEMOAJP-UHFFFAOYSA-N |
| Molecular Formula | C4H12ClNO3 |
Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 8.8
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N 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 |
| IUPAC Name | 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | LENZDBCJOHFCAS-UHFFFAOYSA-N |
| Molecular Formula | C4H11NO3 |
Thermo Scientific Chemicals CAPS, 99%, for biochemistry
CAS: 1135-40-6 Molecular Formula: C9H19NO3S Molecular Weight (g/mol): 221.32 MDL Number: MFCD00003837 InChI Key: PJWWRFATQTVXHA-UHFFFAOYSA-N Synonym: 3-Cyclohexylamino-1-propanesulfonic acid PubChem CID: 70815 IUPAC Name: 3-(cyclohexylamino)propane-1-sulfonic acid SMILES: OS(=O)(=O)CCCNC1CCCCC1
| PubChem CID | 70815 |
|---|---|
| CAS | 1135-40-6 |
| Molecular Weight (g/mol) | 221.32 |
| MDL Number | MFCD00003837 |
| SMILES | OS(=O)(=O)CCCNC1CCCCC1 |
| Synonym | 3-Cyclohexylamino-1-propanesulfonic acid |
| IUPAC Name | 3-(cyclohexylamino)propane-1-sulfonic acid |
| InChI Key | PJWWRFATQTVXHA-UHFFFAOYSA-N |
| Molecular Formula | C9H19NO3S |
Thermo Scientific Chemicals Tricine, 98%, for biochemistry
CAS: 4-1-5704 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N Synonym: N-(2-Hydroxy-1, 1-bis(hydroxymethyl)ethyl)glycine,N-[Tris(hydroxymethyl)methyl]glycine PubChem CID: 79784 ChEBI: CHEBI:39063 IUPAC Name: 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid SMILES: C(C(=O)O)NC(CO)(CO)CO
| PubChem CID | 79784 |
|---|---|
| CAS | 4-1-5704 |
| Molecular Weight (g/mol) | 179.17 |
| ChEBI | CHEBI:39063 |
| MDL Number | MFCD00004277 |
| SMILES | C(C(=O)O)NC(CO)(CO)CO |
| Synonym | N-(2-Hydroxy-1, 1-bis(hydroxymethyl)ethyl)glycine,N-[Tris(hydroxymethyl)methyl]glycine |
| IUPAC Name | 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid |
| InChI Key | SEQKRHFRPICQDD-UHFFFAOYSA-N |
| Molecular Formula | C6H13NO5 |
Thermo Scientific Chemicals EPPS, 99%, for biochemistry
CAS: 16052-06-5 Molecular Formula: C9H20N2O4S Molecular Weight (g/mol): 252.329 MDL Number: MFCD00006160 InChI Key: OWXMKDGYPWMGEB-UHFFFAOYSA-N Synonym: 3-[4-(2-Hydroxyethyl)-1-piperazine]propanesulfonic acid PubChem CID: 85255 ChEBI: CHEBI:42298 IUPAC Name: 3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid SMILES: C1CN(CCN1CCCS(=O)(=O)O)CCO
| PubChem CID | 85255 |
|---|---|
| CAS | 16052-06-5 |
| Molecular Weight (g/mol) | 252.329 |
| ChEBI | CHEBI:42298 |
| MDL Number | MFCD00006160 |
| SMILES | C1CN(CCN1CCCS(=O)(=O)O)CCO |
| Synonym | 3-[4-(2-Hydroxyethyl)-1-piperazine]propanesulfonic acid |
| IUPAC Name | 3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid |
| InChI Key | OWXMKDGYPWMGEB-UHFFFAOYSA-N |
| Molecular Formula | C9H20N2O4S |
MOPS, 99%
CAS: 1132-61-2 Molecular Formula: C7H15NO4S Molecular Weight (g/mol): 209.26 MDL Number: MFCD00006183 InChI Key: DVLFYONBTKHTER-UHFFFAOYSA-N Synonym: 4-Morpholinepropanesulfonic acid; 3-(4-Morpholinyl)propanesulfonic acid PubChem CID: 70807 ChEBI: CHEBI:44115 SMILES: [O-]S(=O)(=O)CCC[NH+]1CCOCC1
| PubChem CID | 70807 |
|---|---|
| CAS | 1132-61-2 |
| Molecular Weight (g/mol) | 209.26 |
| ChEBI | CHEBI:44115 |
| MDL Number | MFCD00006183 |
| SMILES | [O-]S(=O)(=O)CCC[NH+]1CCOCC1 |
| Synonym | 4-Morpholinepropanesulfonic acid; 3-(4-Morpholinyl)propanesulfonic acid |
| InChI Key | DVLFYONBTKHTER-UHFFFAOYSA-N |
| Molecular Formula | C7H15NO4S |
Thermo Scientific Chemicals TRIS-buffered saline (TBS, 10X) pH 8.0
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N 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 |
| IUPAC Name | 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | LENZDBCJOHFCAS-UHFFFAOYSA-N |
| Molecular Formula | C4H11NO3 |
Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 6.8
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N 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 |
| IUPAC Name | 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| InChI Key | LENZDBCJOHFCAS-UHFFFAOYSA-N |
| Molecular Formula | C4H11NO3 |