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

271 – 285 of 3,047 results

271

Thermo Scientific Chemicals TES, 0.2M buffer soln., pH 7.5

CAS: 70331-82-7 Molecular Formula: C6H14NNaO6S Molecular Weight (g/mol): 251.23 MDL Number: MFCD00065482 InChI Key: GUXMFAHOYNRHBI-UHFFFAOYSA-M PubChem CID: 23702152 SMILES: [Na+].OCC(CO)(CO)NCCS([O-])(=O)=O

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Specifications

PubChem CID	23702152
CAS	70331-82-7
Molecular Weight (g/mol)	251.23
MDL Number	MFCD00065482
SMILES	[Na+].OCC(CO)(CO)NCCS([O-])(=O)=O
InChI Key	GUXMFAHOYNRHBI-UHFFFAOYSA-M
Molecular Formula	C6H14NNaO6S

272

Thermo Scientific Chemicals EPPS, 0.2M buffer soln., pH 8.0

CAS: 16052-06-5 Molecular Formula: C9H20N2O4S Molecular Weight (g/mol): 252.329 MDL Number: MFCD00006160 InChI Key: OWXMKDGYPWMGEB-UHFFFAOYSA-N Synonym: HEPPS 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

Pricing & Availability
Specifications

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	HEPPS
IUPAC Name	3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid
InChI Key	OWXMKDGYPWMGEB-UHFFFAOYSA-N
Molecular Formula	C9H20N2O4S

273

Thermo Scientific Chemicals PIPES, 0.5M buffer soln., pH 8.0

CAS: 5625-37-6 Molecular Formula: C8H18N2O6S2 Molecular Weight (g/mol): 302.36 MDL Number: MFCD00006159 InChI Key: IHPYMWDTONKSCO-UHFFFAOYSA-N 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

Pricing & Availability
Specifications

PubChem CID	79723
CAS	5625-37-6
Molecular Weight (g/mol)	302.36
ChEBI	CHEBI:44933
MDL Number	MFCD00006159
SMILES	C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)O
IUPAC Name	2-[4-(2-sulfoethyl)piperazin-1-yl]ethanesulfonic acid
InChI Key	IHPYMWDTONKSCO-UHFFFAOYSA-N
Molecular Formula	C8H18N2O6S2

274

Thermo Scientific Chemicals EPPS, 0.2M buffer soln., pH 8.5

Pricing & Availability
Specifications

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	HEPPS
IUPAC Name	3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid
InChI Key	OWXMKDGYPWMGEB-UHFFFAOYSA-N
Molecular Formula	C9H20N2O4S

275

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

CAS: 150-25-4 Molecular Formula: C6H12NNaO4 Molecular Weight (g/mol): 185.16 MDL Number: MFCD00004295 InChI Key: MFBDBXAVPLFMNJ-UHFFFAOYSA-M PubChem CID: 8761 ChEBI: CHEBI:40957 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]acetic acid SMILES: [Na+].OCCN(CCO)CC([O-])=O

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Specifications

PubChem CID	8761
CAS	150-25-4
Molecular Weight (g/mol)	185.16
ChEBI	CHEBI:40957
MDL Number	MFCD00004295
SMILES	[Na+].OCCN(CCO)CC([O-])=O
IUPAC Name	2-[bis(2-hydroxyethyl)amino]acetic acid
InChI Key	MFBDBXAVPLFMNJ-UHFFFAOYSA-M
Molecular Formula	C6H12NNaO4

276

Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 7.2

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

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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

277

TRIS, 0.5M buffer soln., pH 8.6, Thermo Scientific™

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

278

Tricine-SDS Sample Buffer (2X), non-reducing, Thermo Scientific™

Pricing & Availability
Specifications

Name Note	non-reducing
Health Hazard 3	GHS P Statement P280-P264-P305+P351+P338-P337+P313 Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention.
Health Hazard 2	GHS H Statement H319 Causes serious eye irritation.
Color	Blue
Physical Form	Liquid
Health Hazard 1	H335
Chemical Name or Material	Tricine-SDS Sample Buffer
TSCA	Yes
Recommended Storage	Ambient temperatures
Concentration	2X

279

Thermo Scientific Chemicals MOPS, 0.5M buffer soln., pH 7.5

CAS: 1132-61-2 Molecular Formula: C7H15NO4S Molecular Weight (g/mol): 209.26 MDL Number: MFCD00006183 InChI Key: DVLFYONBTKHTER-UHFFFAOYSA-N PubChem CID: 70807 ChEBI: CHEBI:44115 IUPAC Name: 3-morpholin-4-ylpropane-1-sulfonic acid 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
IUPAC Name	3-morpholin-4-ylpropane-1-sulfonic acid
InChI Key	DVLFYONBTKHTER-UHFFFAOYSA-N
Molecular Formula	C7H15NO4S

280

Thrombin buffer, pH 8.0, Thermo Scientific™

Pricing & Availability
Specifications

Color	Colorless
Physical Form	Liquid
pH	8.0
Recommended Storage	Keep cold
Odor	Odorless

281

Enzyme storage buffer in PBS and glycerol, autoclaved, Thermo Scientific™

For frozen storage of enzymes

Pricing & Availability
Specifications

Physical Form	Liquid
Chemical Name or Material	Enzyme storage buffer in PBS and glycerol
Recommended Storage	Ambient temperatures

282

HEPES protein extraction buffer (5X), Thermo Scientific™

Pricing & Availability
Specifications

Health Hazard 3	P264b-P280i-P305+P351+P338
Health Hazard 2	GHS H Statement H319 Causes serious eye irritation.
Color	Colorless
Physical Form	Liquid
Health Hazard 1	H319
Chemical Name or Material	HEPES protein extraction buffer
TSCA	Yes
Recommended Storage	Ambient temperatures
Concentration	5X

283

Thermo Scientific Chemicals PIPES, 0.5M buffer soln., pH 7.5

Pricing & Availability
Specifications

PubChem CID	79723
CAS	5625-37-6
Molecular Weight (g/mol)	302.36
ChEBI	CHEBI:44933
MDL Number	MFCD00006159
SMILES	C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)O
IUPAC Name	2-[4-(2-sulfoethyl)piperazin-1-yl]ethanesulfonic acid
InChI Key	IHPYMWDTONKSCO-UHFFFAOYSA-N
Molecular Formula	C8H18N2O6S2

284

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

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Specifications

PubChem CID	73243
CAS	10191-18-1
Molecular Weight (g/mol)	213.25
ChEBI	CHEBI:39045
MDL Number	MFCD00007533
SMILES	OCCN(CCO)CCS(O)(=O)=O
Synonym	N, N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid
InChI Key	AJTVSSFTXWNIRG-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

285

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

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	3-(N-Morpholino)propanesulfonic acid
IUPAC Name	3-morpholin-4-ylpropane-1-sulfonic acid
InChI Key	DVLFYONBTKHTER-UHFFFAOYSA-N
Molecular Formula	C7H15NO4S

Life Science Buffers

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