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

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241 – 255 of 3,516 results

241

Thermo Scientific Chemicals Phosphate-buffered saline (PBS, 10X), with Triton∣r X-100

Ideal for maintaining a constant pH.

Pricing & Availability
Specifications

Physical Form	Liquid
Chemical Name or Material	Phosphate Buffered Saline (PBS)
Recommended Storage	Ambient temperatures
Concentration	10 X

242

AMPD, 0.2M buffer soln., pH 9.5, Thermo Scientific™

Pricing & Availability
Specifications

CAS	115-69-5
Molecular Weight (g/mol)	105.137
Color	Colorless
Physical Form	Liquid
pH	9.5
Recommended Storage	Keep cold
Concentration	0.2 M
Odor	Odorless

243

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

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

244

Thermo Scientific Chemicals HEPES, 1.0M buffer soln., pH 9.0

CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N PubChem CID: 23831 ChEBI: CHEBI:42334 IUPAC Name: 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic 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
IUPAC Name	2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
Molecular Formula	C8H18N2O4S

245

Promotions Available

MOPS Hemisodium Salt, Biological Buffer, Spectrum™ Chemical

CAS: 117961-20-3 Molecular Formula: C14H29N2NaO8S2 Molecular Weight (g/mol): 440.50 InChI Key: OVCWZKQPQOVIDT-UHFFFAOYSA-M IUPAC Name: sodium 3-(morpholin-4-yl)propane-1-sulfonic acid 3-(morpholin-4-yl)propane-1-sulfonate SMILES: [Na+].OS(=O)(=O)CCCN1CCOCC1.[O-]S(=O)(=O)CCCN1CCOCC1

Pricing & Availability
Specifications

CAS	117961-20-3
Molecular Weight (g/mol)	440.50
SMILES	[Na+].OS(=O)(=O)CCCN1CCOCC1.[O-]S(=O)(=O)CCCN1CCOCC1
IUPAC Name	sodium 3-(morpholin-4-yl)propane-1-sulfonic acid 3-(morpholin-4-yl)propane-1-sulfonate
InChI Key	OVCWZKQPQOVIDT-UHFFFAOYSA-M
Molecular Formula	C14H29N2NaO8S2

246

Gibco™ DPBS, no calcium, no magnesium

Gibco™ Balanced Salt Solutions are sterile-filtered, packaged in bioprocess containers, and ready to order.

Pricing & Availability
Specifications

Color	Clear, colorless solution
Physical Form	Liquid
pH	7.0 to 7.3
Manufacturing Quality	cGMP
Chemical Name or Material	DPBS
Osmolality	270 to 300 mOsm/kg
Sterility	Sterile-filtered

247

Thermo Scientific Chemicals Hanks' Balanced Salt Solution (1X), with calcium, with magnesium, without phenol red

Pricing & Availability
Specifications

Color	Colorless
Physical Form	Liquid
Recommended Storage	Ambient temperatures

248

HEPES, >98%, MP Biomedicals™

CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N Synonym: 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt,N-(2-Hydroxyethyl)piperazine-N?-(2-ethanesulfonic acid) sodium salt PubChem CID: 23831 ChEBI: CHEBI:42334 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	4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt,N-(2-Hydroxyethyl)piperazine-N?-(2-ethanesulfonic acid) sodium salt
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
Molecular Formula	C8H18N2O4S

249

ADA, 0.2M buffer soln., pH 6.0, Thermo Scientific™

CAS: 7415-22-7 Molecular Formula: C6H9N2NaO5 Molecular Weight (g/mol): 212.137 MDL Number: MFCD00065483 InChI Key: QCGKKVWCABJQQI-UHFFFAOYSA-M PubChem CID: 23679048 IUPAC Name: sodium;2-[(2-amino-2-oxoethyl)-(carboxymethyl)amino]acetate SMILES: C(C(=O)N)N(CC(=O)O)CC(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	23679048
CAS	7415-22-7
Molecular Weight (g/mol)	212.137
MDL Number	MFCD00065483
SMILES	C(C(=O)N)N(CC(=O)O)CC(=O)[O-].[Na+]
IUPAC Name	sodium;2-[(2-amino-2-oxoethyl)-(carboxymethyl)amino]acetate
InChI Key	QCGKKVWCABJQQI-UHFFFAOYSA-M
Molecular Formula	C6H9N2NaO5

250

Thermo Scientific Chemicals Hanks' Balanced Salt Solution (1X), without calcium, without magnesium, without phenol red

Pricing & Availability
Specifications

Color	Colorless
Physical Form	Liquid
Recommended Storage	Ambient temperatures

251

Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 7.5

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

252

TE buffer, pH 8.0, RNAse free

CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 MDL Number: MFCD00236359 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N PubChem CID: 93573 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl

Pricing & Availability
Specifications

PubChem CID	93573
CAS	1185-53-1
Molecular Weight (g/mol)	157.594
MDL Number	MFCD00236359
SMILES	C(C(CO)(CO)N)O.Cl
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride
InChI Key	QKNYBSVHEMOAJP-UHFFFAOYSA-N
Molecular Formula	C4H12ClNO3

253

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

254

MilliporeSigma™ Tris, Hydrochloride, Molecular Biology Grade, Calbiochem™,

CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonym: tris(Hydroxymethyl)aminomethane, HCl PubChem CID: 93573 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl

Pricing & Availability
Specifications

PubChem CID	93573
CAS	1185-53-1
Molecular Weight (g/mol)	157.594
SMILES	C(C(CO)(CO)N)O.Cl
Synonym	tris(Hydroxymethyl)aminomethane, HCl
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride
InChI Key	QKNYBSVHEMOAJP-UHFFFAOYSA-N
Molecular Formula	C4H12ClNO3

255

TRIS hydrochloride, >99%, Cell culture reagent grade, MP Biomedicals™

CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 MDL Number: MFCD00012590 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonym: TRIS HCl,Tris(hydroxymethyl)aminomethane hydrochloride PubChem CID: 93573 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl

Pricing & Availability
Specifications

PubChem CID	93573
CAS	1185-53-1
Molecular Weight (g/mol)	157.594
MDL Number	MFCD00012590
SMILES	C(C(CO)(CO)N)O.Cl
Synonym	TRIS HCl,Tris(hydroxymethyl)aminomethane hydrochloride
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride
InChI Key	QKNYBSVHEMOAJP-UHFFFAOYSA-N
Molecular Formula	C4H12ClNO3

Life Science Buffers

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MOPS Hemisodium Salt, Biological Buffer, Spectrum™ Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

MOPS Hemisodium Salt, Biological Buffer, Spectrum™ Chemical