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

421 – 435 of 3,304 results

421

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
Beilstein	741883
Molecular Formula	C4H11NO3
Melting Point	167°C to 172°C

422

Thermo Scientific Chemicals PIPES, 0.5M buffer soln., pH 7.0

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

423

Tris, MP Biomedicals™

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: Trometamol, Tromethamine, Tris-[hydroxymethyl]aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol 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
SMILES	C(C(CO)(CO)N)O
Synonym	Trometamol, Tromethamine, Tris-[hydroxymethyl]aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

424

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

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

425

PIPES, 0.2M buffer soln., pH 7.0, low endotoxin, Thermo Scientific™

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

426

Thermo Scientific Chemicals Hanks' Balanced Salt Solution (1X), with calcium, with magnesium, with phenol red

Pricing & Availability
Specifications

Color	Red
Physical Form	Liquid
Recommended Storage	Ambient temperatures

427

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

Pricing & Availability
Specifications

Packaging	Plastic bottle
Physical Form	Liquid
Recommended Storage	Ambient temperatures

428

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

Pricing & Availability
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

429

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

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

430

Thermo Scientific Chemicals MES-SDS running buffer (20X)

Pricing & Availability
Specifications

Physical Form	Liquid
Recommended Storage	Ambient temperatures
Concentration	20X

431

Thermo Scientific Chemicals TRIS, 0.5M buffer soln., pH 8.8

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

432

Thermo Scientific Chemicals MES, 0.2M buffer soln., pH 6.0

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

433

Thermo Scientific Chemicals Tris(hydroxymethyl)aminomethane, Molecular Biology Grade, 99.9%

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

434

Thermo Scientific Chemicals HEPES, 1.0M buffer soln., pH 7.0

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

435

Thrombin buffer, pH 8.0, Thermo Scientific™

Pricing & Availability
Specifications

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

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