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 ADA, 99%, for biochemistry
CAS: 26239-55-4 Molecular Formula: C6H10N2O5 Molecular Weight (g/mol): 190.155 MDL Number: MFCD00008031 InChI Key: QZTKDVCDBIDYMD-UHFFFAOYSA-N Synonym: N-(2-Acetamido)iminodiacetic acid,N-(Carbamoylmethyl)iminodiacetic acid PubChem CID: 117765 ChEBI: CHEBI:43960 IUPAC Name: 2-[(2-amino-2-oxoethyl)-(carboxymethyl)amino]acetic acid SMILES: C(C(=O)N)N(CC(=O)O)CC(=O)O
Thermo Scientific Chemicals Tricine, 99+%, 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-[Tris(hydroxymethyl)methyl]glycine,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
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 PIPES, 98.5+%, for biochemistry
CAS: 5625-37-6 Molecular Formula: C8H18N2O6S2 Molecular Weight (g/mol): 302.36 InChI Key: IHPYMWDTONKSCO-UHFFFAOYSA-N Synonym: 1, 4-Piperazinebis(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
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 BES, 99+%, for biochemistry
CAS: 10191-18-1 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.25 MDL Number: MFCD00007533 InChI Key: AJTVSSFTXWNIRG-UHFFFAOYSA-N Synonym: N, N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid PubChem CID: 73243 ChEBI: CHEBI:39045 SMILES: OCCN(CCO)CCS(O)(=O)=O
Thermo Scientific Chemicals MOPS, 99.5%, for molecular biology, Dnase, Rnase, Prot. free, for peptide sequencing
CAS: 1132-61-2 Molecular Formula: C7H15NO4S Molecular Weight (g/mol): 209.26 MDL Number: MFCD00006183 InChI Key: DVLFYONBTKHTER-UHFFFAOYSA-N Synonym: 3-(N-Morpholino)propanesulfonic acid PubChem CID: 70807 ChEBI: CHEBI:44115 IUPAC Name: 3-morpholin-4-ylpropane-1-sulfonic acid SMILES: [O-]S(=O)(=O)CCC[NH+]1CCOCC1
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+]
Thermo Scientific Chemicals MES monohydrate, 99+%, for biochemistry
CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 195.23 MDL Number: MFCD00149409 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N Synonym: 2-(N-Morpholino)ethanesulfonic acid monohydrate PubChem CID: 16218417 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate SMILES: C1COCCN1CCS(=O)(=O)O.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
Thermo Scientific Chemicals MES, 99+%, <1% water
CAS: 4432-31-9 Molecular Formula: C6H13NO4S Molecular Weight (g/mol): 195.233 MDL Number: MFCD00006181 InChI Key: SXGZJKUKBWWHRA-UHFFFAOYSA-N Synonym: 2-(N-Morpholino)ethanesulfonic acid PubChem CID: 78165 ChEBI: CHEBI:39005 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid SMILES: C1COCCN1CCS(=O)(=O)O
Tris(hydroxymethyl)aminomethane, 99.8%, ACS reagent
CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: 2-Amino-2-(hydroxymethyl)-1, 3-propanediol,TRIS,Tris buffer,Tromethamine,Tromethane 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 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
Bicine, 99+%, for analysis
CAS: 150-25-4 Molecular Formula: C6H12NNaO4 Molecular Weight (g/mol): 185.16 MDL Number: MFCD00004295 InChI Key: MFBDBXAVPLFMNJ-UHFFFAOYSA-M Synonym: N, N-Bis(2-hydroxyethyl)glycine,Diethylolglycine PubChem CID: 8761 ChEBI: CHEBI:40957 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]acetic acid SMILES: [Na+].OCCN(CCO)CC([O-])=O
Thermo Scientific Chemicals HEPES free acid, 99+%, for molecular biology, DNase, Rnase and Protease free
CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N Synonym: 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid PubChem CID: 23831 ChEBI: CHEBI:42334 IUPAC Name: 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonic acid SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1