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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181 – 195 of 3,331 results

181

Thermo Scientific Chemicals MES, 0.5M buffer soln., 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

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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

182

Thermo Scientific Chemicals TAPSO, for biochemistry

CAS: 68399-81-5 Molecular Formula: C7H17NO7S Molecular Weight (g/mol): 259.273 MDL Number: MFCD00038352 InChI Key: RZQXOGQSPBYUKH-UHFFFAOYSA-N Synonym: 3-(N-Tris-(hydroxymethyl)methylamino)-2-hydroxypropanesulfonic acid PubChem CID: 109334 IUPAC Name: 3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]-2-hydroxypropane-1-sulfonic acid SMILES: C(C(CS(=O)(=O)O)O)NC(CO)(CO)CO

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Specifications

PubChem CID	109334
CAS	68399-81-5
Molecular Weight (g/mol)	259.273
MDL Number	MFCD00038352
SMILES	C(C(CS(=O)(=O)O)O)NC(CO)(CO)CO
Synonym	3-(N-Tris-(hydroxymethyl)methylamino)-2-hydroxypropanesulfonic acid
IUPAC Name	3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]-2-hydroxypropane-1-sulfonic acid
InChI Key	RZQXOGQSPBYUKH-UHFFFAOYSA-N
Molecular Formula	C7H17NO7S

183

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

184

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

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Specifications

PubChem CID	78165
CAS	4432-31-9
Molecular Weight (g/mol)	195.233
ChEBI	CHEBI:39005
MDL Number	MFCD00006181
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

185

Thermo Scientific Chemicals MOPS, 1.0M buffer soln., pH 6.5

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

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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

186

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

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Specifications

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

187

Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 6.5

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

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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

188

TRIS, MP Biomedicals™

TRIS, Molecular Biology Reagent, ≥99.95%, White Crystalline Powder

Pricing & Availability
Specifications

Storage Note 1	Store at Room Temperature (15-30°C). Store dessicated.
Molecular Weight (g/mol)	121.14
Loss on Drying	≤1%
Color	White
Grade	Molecular Biology Reagent
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
CAS	77-86-1
MDL Number	MFCD00004679
Solubility Information	Soluble in water (40% aq soln) Clear, Colorless Solution (550mg/mL), ethyleneglycol (79.1mg/mL), methanol (26mg/mL), anhydrous ethanol (14.6mg/mL), 95% ethanol (22.0mg/mL), DMF (14mg/mL), acetone (2mg/mL), ethyl acetate (0.5mg/mL), olive oil (0.4mg/mL), and chloroform (0.05mg/mL).
pH	10 to 11.5 (5% aq. soln.)
Synonym	Trometamol,THAM,Tromethamine,Tris base
Purity Grade Notes	≥99.95%
RTECS Number	TY2900000
Molecular Formula	C4H11NO3
Melting Point	167°C to 172°C

189

Thermo Scientific Chemicals Phosphate-buffered saline (PBS, 10X), pH 7.6

Helps to maintain a constant pH

Pricing & Availability
Specifications

Physical Form	Liquid
pH	7.6
Chemical Name or Material	Phosphate Buffered Saline (PBS)
Recommended Storage	Ambient temperatures
Concentration	10 X

190

Thermo Scientific Chemicals HEPES-buffered saline, pH 7.0 (2X for transfection)

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 SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1

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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
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
Molecular Formula	C8H18N2O4S

191

Thermo Scientific Chemicals HEPES, 0.5M buffer soln., pH 7.6

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
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
Molecular Formula	C8H18N2O4S

192

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

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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

193

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

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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

194

Tris, 99.8 to 100.1% (Dry Basis), Molecular Biology Grade, Ultrapure

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: Tris(hydroxymethyl)amino methane 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
Synonym	Tris(hydroxymethyl)amino methane
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

195

Glycylglycine, 0.2M buffer soln., pH 8.0, Thermo Scientific™

CAS: 556-50-3 Molecular Formula: C4H8N2O3 Molecular Weight (g/mol): 132.119 MDL Number: MFCD00008130 InChI Key: YMAWOPBAYDPSLA-UHFFFAOYSA-N PubChem CID: 11163 ChEBI: CHEBI:17201 IUPAC Name: 2-[(2-aminoacetyl)amino]acetic acid SMILES: C(C(=O)NCC(=O)O)N

Pricing & Availability
Specifications

PubChem CID	11163
CAS	556-50-3
Molecular Weight (g/mol)	132.119
ChEBI	CHEBI:17201
MDL Number	MFCD00008130
SMILES	C(C(=O)NCC(=O)O)N
IUPAC Name	2-[(2-aminoacetyl)amino]acetic acid
InChI Key	YMAWOPBAYDPSLA-UHFFFAOYSA-N
Molecular Formula	C4H8N2O3

Life Science Buffers

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