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
MES, Monohydrate, cGMP Manufactured, 99.5%, Spectrum™ Chemical
CAS: 145224-94-8 Molecular Formula: C6H13NO4S Molecular Weight (g/mol): 213.25 InChI Key: SXGZJKUKBWWHRA-UHFFFAOYSA-N IUPAC Name: 4-(2-sulfonatoethyl)morpholin-4-ium SMILES: [O-]S(=O)(=O)CC[NH+]1CCOCC1
Tris Base Buffer, Powder, Corning™
Used in buffer solutions in biochemical and molecular biological research
Tris, ≥98%
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: Tris(hydroxymethyl)amino methane PubChem CID: 6503 ChEBI: CHEBI:9754 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O
Gibco™ HBSS, calcium, magnesium, no phenol red
Hanks' Balanced Salt Solution (HBSS) is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents.
Gibco™ HBSS, no calcium, no magnesium
Hanks' Balanced Salt Solution (HBSS) is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents.
Gibco™ HBSS (10X), no calcium, no magnesium, phenol red
Hanks' Balanced Salt Solution (HBSS) is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Gibco™ HBSS (10X), no calcium, no magnesium, no phenol red
Hanks' Balanced Salt Solution (HBSS) is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Tricine Buffer, MP Biomedicals
CAS: 4-1-5704 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N Synonym: N-Tris-[hydroxymethyl]methylglycine,N-[2-Hydroxy-1, 1-bis(hydroxymethyl) ethyl] 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
Tris Hydrochloride, MP Biomedicals™
Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonym: Trometamol, Tromethamine, Tris-[hydroxymethyl]aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol PubChem CID: 93573 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl
HEPES sodium salt, ≥99%, 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
Tricine, 0.5M buffer soln., pH 6.5, Thermo Scientific™
CAS: 4-1-5704 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N 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
Corning™ Mediatech™ Cell Culture Phosphate Buffered Saline (10X)
With low endotoxin content
Thermo Scientific Chemicals Potassium phosphate, 0.2M buffer soln., pH 7.4
CAS: 7778-77-0 Molecular Formula: H2KO4P Molecular Weight (g/mol): 136.08 MDL Number: MFCD00011401 MFCD00147253 InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M IUPAC Name: potassium dihydrogen phosphate SMILES: [K+].OP(O)([O-])=O
Thermo Scientific Chemicals AMPSO, 98+%
CAS: 68399-79-1 Molecular Formula: C7H17NO5S Molecular Weight (g/mol): 227.28 MDL Number: MFCD00041777 InChI Key: ACERFIHBIWMFOR-UHFFFAOYNA-N Synonym: N-(1,1-Dimethyl-2-hydroxyethyl)-3-amino-2-hydroxypropanesulfonic acid PubChem CID: 100211 IUPAC Name: 2-hydroxy-3-[(1-hydroxy-2-methylpropan-2-yl)amino]propane-1-sulfonic acid SMILES: CC(C)(CO)NCC(O)CS(O)(=O)=O
MilliporeSigma™ PBS Tablets, Calbiochem™,
Dissolving one tablet in 1 liter of deionized H2O yields 140mM NaCl, 10mM phosphate buffer, and 3mM KCl