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

151 – 165 of 3,046 results

151

Thermo Scientific Chemicals ACES, 99%

CAS: 7365-82-4 Molecular Formula: C4H10N2O4S Molecular Weight (g/mol): 182.194 MDL Number: MFCD00008030 InChI Key: DBXNUXBLKRLWFA-UHFFFAOYSA-N Synonym: aces,n-carbamoylmethyl taurine,n-2-acetamido-2-aminoethanesulfonic acid,2-2-amino-2-oxoethyl amino ethanesulfonic acid,ethanesulfonic acid, 2-2-amino-2-oxoethyl amino,unii-i5spl5yvby,i5spl5yvby,2-carbamoylmethylamino ethanesulfonic acid PubChem CID: 81832 ChEBI: CHEBI:39062 IUPAC Name: 2-[(2-amino-2-oxoethyl)amino]ethanesulfonic acid SMILES: C(CS(=O)(=O)O)NCC(=O)N

Pricing & Availability
Specifications

PubChem CID	81832
CAS	7365-82-4
Molecular Weight (g/mol)	182.194
ChEBI	CHEBI:39062
MDL Number	MFCD00008030
SMILES	C(CS(=O)(=O)O)NCC(=O)N
Synonym	aces,n-carbamoylmethyl taurine,n-2-acetamido-2-aminoethanesulfonic acid,2-2-amino-2-oxoethyl amino ethanesulfonic acid,ethanesulfonic acid, 2-2-amino-2-oxoethyl amino,unii-i5spl5yvby,i5spl5yvby,2-carbamoylmethylamino ethanesulfonic acid
IUPAC Name	2-[(2-amino-2-oxoethyl)amino]ethanesulfonic acid
InChI Key	DBXNUXBLKRLWFA-UHFFFAOYSA-N
Molecular Formula	C4H10N2O4S

152

Thermo Scientific Chemicals TBE urea sample buffer (2X)

Pricing & Availability
Specifications

Color	Blue
Physical Form	Liquid
Chemical Name or Material	Sample Loading Buffer
Concentration	2X

153

Thermo Scientific Chemicals Phosphate-buffered saline (DPBS, 1X), Dulbecco's formula

Pricing & Availability
Specifications

Packaging	Plastic bottle
Physical Form	Liquid
Recommended Storage	Ambient temperatures

154

MES monohydrate, free acid, ≥99%, MP Biomedicals™

CAS: 4432-31-9 Molecular Formula: C6H13NO4S Molecular Weight (g/mol): 195.233 MDL Number: MFCD00149409 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

Pricing & Availability
Specifications

PubChem CID	78165
CAS	4432-31-9
Molecular Weight (g/mol)	195.233
ChEBI	CHEBI:39005
MDL Number	MFCD00149409
SMILES	C1COCCN1CCS(=O)(=O)O
Synonym	2-[N-morpholino]ethanesulfonic acid
IUPAC Name	2-morpholin-4-ylethanesulfonic acid
InChI Key	SXGZJKUKBWWHRA-UHFFFAOYSA-N
Molecular Formula	C6H13NO4S

155

MOPS, MP Biomedicals™

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-(N-morpholino)propanesulfonic acid PubChem CID: 70807 ChEBI: CHEBI:44115 SMILES: [O-]S(=O)(=O)CCC[NH+]1CCOCC1

Pricing & Availability
Specifications

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-(N-morpholino)propanesulfonic acid
InChI Key	DVLFYONBTKHTER-UHFFFAOYSA-N
Molecular Formula	C7H15NO4S

156

Thermo Scientific Chemicals TRIS, 0.5M buffer soln., pH 8.5

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

Pricing & Availability
Specifications

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

157

Thermo Scientific™ TRIS, 1.0M buffer soln., pH 8.0

Pricing & Availability
Specifications

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

158

Thermo Scientific Chemicals TRIS-buffered saline (TBS, 10X), with 0.5% Tween 20

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00678198 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

Pricing & Availability
Specifications

PubChem CID	6503
CAS	77-86-1
Molecular Weight (g/mol)	121.136
ChEBI	CHEBI:9754
MDL Number	MFCD00678198
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

159

Thermo Scientific Chemicals TBE (10X), TRIS + borate + EDTA

Pricing & Availability
Specifications

Description	Colorless
Physical Form	Liquid
Chemical Name or Material	Buffer
Recommended Storage	Ambient temperatures
Concentration	10X

160

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

Pricing & Availability
Specifications

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
Synonym	2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid
IUPAC Name	2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonic acid
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
Molecular Formula	C8H18N2O4S

161

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

Pricing & Availability
Specifications

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

162

Thermo Scientific Chemicals MES-buffered saline (5X), pH 6.5

CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.248 MDL Number: MFCD00283848 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N PubChem CID: 16218417 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate SMILES: C1COCCN1CCS(=O)(=O)O.O

Pricing & Availability
Specifications

PubChem CID	16218417
CAS	145224-94-8
Molecular Weight (g/mol)	213.248
MDL Number	MFCD00283848
SMILES	C1COCCN1CCS(=O)(=O)O.O
IUPAC Name	2-morpholin-4-ylethanesulfonic acid;hydrate
InChI Key	MIIIXQJBDGSIKL-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

163

MP Biomedicals™ Dulbecco's Phosphate Buffered Saline (10X) without Calcium and Magnesium

Stock solution used to prepare 1X D-PBS in cell culture grade water.

Pricing & Availability

164

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+]

Pricing & Availability
Specifications

PubChem CID	23673676
CAS	71119-23-8
Molecular Weight (g/mol)	217.215
ChEBI	CHEBI:62955
MDL Number	MFCD00065473
SMILES	C1COCCN1CCS(=O)(=O)[O-].[Na+]
IUPAC Name	sodium;2-morpholin-4-ylethanesulfonate
InChI Key	IRHWMYKYLWNHTL-UHFFFAOYSA-M
Molecular Formula	C6H12NNaO4S

165

Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 6.8

Pricing & Availability
Specifications

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

Life Science Buffers

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