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
Thermo Scientific Chemicals MES sodium salt, 99%
CAS: 71119-23-8 Molecular Formula: C6H12NNaO4S Molecular Weight (g/mol): 217.215 MDL Number: MFCD00065473 InChI Key: IRHWMYKYLWNHTL-UHFFFAOYSA-M PubChem CID: 23673676 ChEBI: CHEBI:62955 IUPAC Name: sodium;2-morpholin-4-ylethanesulfonate SMILES: C1COCCN1CCS(=O)(=O)[O-].[Na+]
MOPS sodium salt, 98%
CAS: 71119-22-7 Molecular Formula: C7H14NNaO4S Molecular Weight (g/mol): 231.242 MDL Number: MFCD00064350 InChI Key: MWEMXEWFLIDTSJ-UHFFFAOYSA-M Synonym: 3-(4-Morpholino)propanesulfonic acid sodium salt PubChem CID: 3859613 IUPAC Name: sodium;3-morpholin-4-ylpropane-1-sulfonate SMILES: C1COCCN1CCCS(=O)(=O)[O-].[Na+]
Thermo Scientific Chemicals HEPES sodium salt, 99%
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]ethane-1-sulfonate SMILES: [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1
Thermo Scientific Chemicals HEPES hemisodium salt
CAS: 103404-87-1 Molecular Formula: C8H17N2NaO4S Molecular Weight (g/mol): 260.28 MDL Number: MFCD00036463 InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M Synonym: 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic 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
MOPSO sodium salt
CAS: 79803-73-9 Molecular Formula: C7H14NNaO5S Molecular Weight (g/mol): 247.24 InChI Key: WSFQLUVWDKCYSW-UHFFFAOYNA-M IUPAC Name: sodium 2-hydroxy-3-(morpholin-4-yl)propane-1-sulfonate SMILES: [Na+].OC(CN1CCOCC1)CS([O-])(=O)=O
TAPS sodium salt, 98%
Molecular Formula: C7H16NNaO6S Molecular Weight (g/mol): 265.256 MDL Number: MFCD00069903 InChI Key: FEGYIWVHCSRXCG-UHFFFAOYSA-M PubChem CID: 23667519 IUPAC Name: sodium;3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]propane-1-sulfonate SMILES: C(CNC(CO)(CO)CO)CS(=O)(=O)[O-].[Na+]
PIPES, disodium salt, 99%
CAS: 76836-02-7 Molecular Formula: C8H16N2Na2O6S2 Molecular Weight (g/mol): 346.324 InChI Key: GMHSTJRPSVFLMT-UHFFFAOYSA-L Synonym: 1, 4-Piperazinediethanesulfonic acid disodium salt PubChem CID: 173553 ChEBI: CHEBI:63055 IUPAC Name: disodium;2-[4-(2-sulfonatoethyl)piperazin-1-yl]ethanesulfonate SMILES: C1CN(CCN1CCS(=O)(=O)[O-])CCS(=O)(=O)[O-].[Na+].[Na+]
TES sodium salt, Thermo Scientific Chemicals
CAS: 70331-82-7 Molecular Formula: C6H14NNaO6S Molecular Weight (g/mol): 251.23 MDL Number: MFCD00065482 InChI Key: GUXMFAHOYNRHBI-UHFFFAOYSA-M Synonym: 2-([Tris(hydroxymethyl)methyl]amino)ethane-1-sulfonic acid sodium salt PubChem CID: 23702152 IUPAC Name: sodium 2-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino}ethane-1-sulfonate SMILES: [Na+].OCC(CO)(CO)NCCS([O-])(=O)=O
Corning™ Cell Culture Buffers: Dulbecco's Phosphate-Buffered Salt Solution 1X
With low endotoxin content.
Thermo Scientific Chemicals TRIS-buffered saline (TBS, 10X, high salt) pH 7.4
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
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
PIPES Sesquisodium Salt, MP Biomedicals™
CAS: 100037-69-2 Molecular Formula: C16H33N4Na3O12S4 InChI Key: FPDACHMSOMILQI-UHFFFAOYSA-K Synonym: 1, 4-Piperazinediethanesulfonic acid sesquisodium salt,Piperazine-1, 4-bis(2-ethanesulfonic acid) sesquisodium salt PubChem CID: 3086462
MP Biomedicals™ Earle's Balanced Salts, 500mL
For use in Mammalian cell culture
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