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

466 – 480 of 3,305 results

466

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

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

467

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

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(hydroxymethyl)amino methane
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

468

Tris, Ultra Pure, 5kg, MP Biomedicals

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

469

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

470

Bis-Tris, ≥99%, MP Biomedicals™

CAS: 6976-37-0 Molecular Formula: C8H19NO5 Molecular Weight (g/mol): 209.242 MDL Number: MFCD00002853 InChI Key: OWMVSZAMULFTJU-UHFFFAOYSA-N Synonym: 2,2-bis(Hydroxymethyl)-2,2',2''-nitrilotriethanol,2, 2-bis(Hydroxymethyl)-2, 2' PubChem CID: 81462 ChEBI: CHEBI:41250 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol SMILES: C(CO)N(CCO)C(CO)(CO)CO

Pricing & Availability
Specifications

PubChem CID	81462
CAS	6976-37-0
Molecular Weight (g/mol)	209.242
ChEBI	CHEBI:41250
MDL Number	MFCD00002853
SMILES	C(CO)N(CCO)C(CO)(CO)CO
Synonym	2,2-bis(Hydroxymethyl)-2,2',2''-nitrilotriethanol,2, 2-bis(Hydroxymethyl)-2, 2'
IUPAC Name	2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol
InChI Key	OWMVSZAMULFTJU-UHFFFAOYSA-N
Molecular Formula	C8H19NO5

471

Tricine, Electrophoresis Grade, MP Biomedicals

CAS: 4-1-5704 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N PubChem CID: 79784 ChEBI: CHEBI:39063 IUPAC Name: 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid SMILES: C(C(=O)O)NC(CO)(CO)CO

Pricing & Availability
Specifications

PubChem CID	79784
CAS	4-1-5704
Molecular Weight (g/mol)	179.17
ChEBI	CHEBI:39063
SMILES	C(C(=O)O)NC(CO)(CO)CO
IUPAC Name	2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid
InChI Key	SEQKRHFRPICQDD-UHFFFAOYSA-N
Molecular Formula	C6H13NO5

472

HEPES sodium salt, >98%, MP Biomedicals™

CAS: 75277-39-3 Molecular Formula: C8H17N2NaO4S Molecular Weight (g/mol): 260.28 MDL Number: MFCD00036463 InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M Synonym: 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt,N-(2-Hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid) sodium salt PubChem CID: 2724248 ChEBI: CHEBI:46758 IUPAC Name: sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate SMILES: [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1

Pricing & Availability
Specifications

PubChem CID	2724248
CAS	75277-39-3
Molecular Weight (g/mol)	260.28
ChEBI	CHEBI:46758
MDL Number	MFCD00036463
SMILES	[Na+].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
IUPAC Name	sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate
InChI Key	RDZTWEVXRGYCFV-UHFFFAOYSA-M
Molecular Formula	C8H17N2NaO4S

473

HEPPSO, 99%, MP Biomedicals

CAS: 68399-78-0 Molecular Formula: C9H20N2O5S Molecular Weight (g/mol): 268.328 InChI Key: GIZQLVPDAOBAFN-UHFFFAOYSA-N Synonym: heppso,2-hydroxy-3-4-2-hydroxyethyl piperazin-1-yl propane-1-sulfonic acid,n-hydroxyethyl piperazine-n'-2-hydroxypropanesulfonic acid,beta-hydroxy-4-2-hydroxyethyl piperazine-1-propanesulphonic acid,beta-hydroxy-4-2-hydroxyethyl-1-piperazinepropanesulfonic acid,3-4-2-hydroxyethyl-1-piperazinyl-2-hydroxypropanesulfonic acid,4-2-hydroxyethyl piperazine-1-2-hydroxypropane-3-sulfonic acid,4-2-hydroxyethyl piperazine-1-2-hydroxypropane sulfonic acid free acid,2-hydroxy-3-4-2-hydroxyethyl piperazinyl propanesulfonic acid PubChem CID: 100205 ChEBI: CHEBI:32951 IUPAC Name: 2-hydroxy-3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid SMILES: C1CN(CCN1CCO)CC(CS(=O)(=O)O)O

Pricing & Availability
Specifications

PubChem CID	100205
CAS	68399-78-0
Molecular Weight (g/mol)	268.328
ChEBI	CHEBI:32951
SMILES	C1CN(CCN1CCO)CC(CS(=O)(=O)O)O
Synonym	heppso,2-hydroxy-3-4-2-hydroxyethyl piperazin-1-yl propane-1-sulfonic acid,n-hydroxyethyl piperazine-n'-2-hydroxypropanesulfonic acid,beta-hydroxy-4-2-hydroxyethyl piperazine-1-propanesulphonic acid,beta-hydroxy-4-2-hydroxyethyl-1-piperazinepropanesulfonic acid,3-4-2-hydroxyethyl-1-piperazinyl-2-hydroxypropanesulfonic acid,4-2-hydroxyethyl piperazine-1-2-hydroxypropane-3-sulfonic acid,4-2-hydroxyethyl piperazine-1-2-hydroxypropane sulfonic acid free acid,2-hydroxy-3-4-2-hydroxyethyl piperazinyl propanesulfonic acid
IUPAC Name	2-hydroxy-3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid
InChI Key	GIZQLVPDAOBAFN-UHFFFAOYSA-N
Molecular Formula	C9H20N2O5S

474

MP Biomedicals™ SM Buffer

SM Buffer is a sterile solution.

Pricing & Availability

475

MilliporeSigma™ HEPES, Free Acid, ULTROL™ Grade, 1.0 M Solution, Calbiochem™,

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

476

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

477

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

478

Bis-Tris, ≥98% (Dry Basis), Ultrapure

CAS: 6976-37-0 Molecular Formula: C8H19NO5 Molecular Weight (g/mol): 209.242 MDL Number: MFCD00002853 InChI Key: OWMVSZAMULFTJU-UHFFFAOYSA-N Synonym: bis[2 to Hydroxyethyl]imino to tris[hydroxymethyl]methane PubChem CID: 81462 ChEBI: CHEBI:41250 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol SMILES: C(CO)N(CCO)C(CO)(CO)CO

Pricing & Availability
Specifications

PubChem CID	81462
CAS	6976-37-0
Molecular Weight (g/mol)	209.242
ChEBI	CHEBI:41250
MDL Number	MFCD00002853
SMILES	C(CO)N(CCO)C(CO)(CO)CO
Synonym	bis[2 to Hydroxyethyl]imino to tris[hydroxymethyl]methane
IUPAC Name	2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol
InChI Key	OWMVSZAMULFTJU-UHFFFAOYSA-N
Molecular Formula	C8H19NO5