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 3,051 results

421

MilliporeSigma™ Tris, Hydrochloride, ULTROL™ 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

422

MilliporeSigma™ TAPS, ULTROL™ Grade, Calbiochem™,

CAS: 29915-38-6 Molecular Formula: C7H17NO6S Molecular Weight (g/mol): 243.27 MDL Number: MFCD00007538 InChI Key: YNLCVAQJIKOXER-UHFFFAOYSA-N Synonym: 3-{[tris(Hydroxymethyl)methyl]amino}propanesulfonic Acid PubChem CID: 121591 IUPAC Name: 3-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino}propane-1-sulfonic acid SMILES: OCC(CO)(CO)NCCCS(O)(=O)=O

Pricing & Availability
Specifications

PubChem CID	121591
CAS	29915-38-6
Molecular Weight (g/mol)	243.27
MDL Number	MFCD00007538
SMILES	OCC(CO)(CO)NCCCS(O)(=O)=O
Synonym	3-{[tris(Hydroxymethyl)methyl]amino}propanesulfonic Acid
IUPAC Name	3-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino}propane-1-sulfonic acid
InChI Key	YNLCVAQJIKOXER-UHFFFAOYSA-N
Molecular Formula	C7H17NO6S

423

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

424

HEPES Sodium Salt, Biological Buffer, High Purity, 98%, Spectrum™ Chemical

CAS: 75277-39-3 Molecular Formula: C8H17N2NaO4S Molecular Weight (g/mol): 260.28 InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M IUPAC Name: sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate SMILES: [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1

Pricing & Availability
Specifications

CAS	75277-39-3
Molecular Weight (g/mol)	260.28
SMILES	[Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1
IUPAC Name	sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate
InChI Key	RDZTWEVXRGYCFV-UHFFFAOYSA-M
Molecular Formula	C8H17N2NaO4S

425

PIPES, Monosodium Salt, Biological Buffer, High Purity, 98.5%, Spectrum™ Chemical

CAS: 10010-67-0 Molecular Formula: C8H17N2NaO6S2 Molecular Weight (g/mol): 324.34 MDL Number: MFCD00065472 InChI Key: OGGAIRCLBMGXCZ-UHFFFAOYSA-M IUPAC Name: sodium 2-[4-(2-sulfoethyl)piperazin-1-yl]ethane-1-sulfonate SMILES: [Na+].OS(=O)(=O)CCN1CCN(CCS([O-])(=O)=O)CC1

Pricing & Availability
Specifications

CAS	10010-67-0
Molecular Weight (g/mol)	324.34
MDL Number	MFCD00065472
SMILES	[Na+].OS(=O)(=O)CCN1CCN(CCS([O-])(=O)=O)CC1
IUPAC Name	sodium 2-[4-(2-sulfoethyl)piperazin-1-yl]ethane-1-sulfonate
InChI Key	OGGAIRCLBMGXCZ-UHFFFAOYSA-M
Molecular Formula	C8H17N2NaO6S2

426

Tricine Buffer, MP Biomedicals

CAS: 5704-04-1 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N Synonym: N-Tris-[hydroxymethyl]methylglycine,N-[2-Hydroxy-1, 1-bis(hydroxymethyl) ethyl] glycine 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	5704-04-1
Molecular Weight (g/mol)	179.17
ChEBI	CHEBI:39063
MDL Number	MFCD00004277
SMILES	C(C(=O)O)NC(CO)(CO)CO
Synonym	N-Tris-[hydroxymethyl]methylglycine,N-[2-Hydroxy-1, 1-bis(hydroxymethyl) ethyl] glycine
IUPAC Name	2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid
InChI Key	SEQKRHFRPICQDD-UHFFFAOYSA-N
Molecular Formula	C6H13NO5

427

Tris, Ultra Pure grade, 99.95% min., MP Biomedicals™

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: Tris base,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
MDL Number	MFCD00004679
SMILES	C(C(CO)(CO)N)O
Synonym	Tris base,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

428

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

429

N,N-bis(2-Hydroxyethyl)-2-aminoethanesulfonic acid, free acid, MP Biomedicals™

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)taurine,N, N-bis(2-Hydroxyethyl)-2-aminoethanesulfonic acid PubChem CID: 73243 ChEBI: CHEBI:39045 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]ethane-1-sulfonic acid SMILES: OCCN(CCO)CCS(O)(=O)=O

Pricing & Availability
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)taurine,N, N-bis(2-Hydroxyethyl)-2-aminoethanesulfonic acid
IUPAC Name	2-[bis(2-hydroxyethyl)amino]ethane-1-sulfonic acid
InChI Key	AJTVSSFTXWNIRG-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

430

HEPPS, (Crystalline),MP Biomedicals

CAS: 16052-06-5 Molecular Formula: C9H20N2O4S Molecular Weight (g/mol): 252.329 InChI Key: OWXMKDGYPWMGEB-UHFFFAOYSA-N Synonym: hepps,epps,4-2-hydroxyethyl-1-piperazinepropanesulfonic acid,3-4-2-hydroxyethyl piperazin-1-yl propane-1-sulfonic acid,1-piperazinepropanesulfonic acid, 4-2-hydroxyethyl,n-2-hydroxyethyl piperazine-n'-3-propanesulfonic acid,4-2-hydroxyethyl piperazine-1-propanesulfonic acid,4-2-hydroxyethyl-1-piperazinepropane sulfonic acid,4-2-hydroxyethyl-1-piperazinepropanesulphonic acid 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
SMILES	C1CN(CCN1CCCS(=O)(=O)O)CCO
Synonym	hepps,epps,4-2-hydroxyethyl-1-piperazinepropanesulfonic acid,3-4-2-hydroxyethyl piperazin-1-yl propane-1-sulfonic acid,1-piperazinepropanesulfonic acid, 4-2-hydroxyethyl,n-2-hydroxyethyl piperazine-n'-3-propanesulfonic acid,4-2-hydroxyethyl piperazine-1-propanesulfonic acid,4-2-hydroxyethyl-1-piperazinepropane sulfonic acid,4-2-hydroxyethyl-1-piperazinepropanesulphonic acid
IUPAC Name	3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid
InChI Key	OWXMKDGYPWMGEB-UHFFFAOYSA-N
Molecular Formula	C9H20N2O4S

431

Tricine, Electrophoresis Grade, MP Biomedicals

CAS: 5704-04-1 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	5704-04-1
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

432

Thermo Scientific Chemicals ACES, 99%, extra pure

CAS: 7365-82-4 Molecular Formula: C4H10N2O4S Molecular Weight (g/mol): 182.194 MDL Number: MFCD00008030 InChI Key: DBXNUXBLKRLWFA-UHFFFAOYSA-N Synonym: N-(2-Acetamido)-2-aminoethanesulfonic acid,N-(Carbamoylmethyl)taurine 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

Pricing & Availability
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	N-(2-Acetamido)-2-aminoethanesulfonic acid,N-(Carbamoylmethyl)taurine
IUPAC Name	2-[(2-amino-2-oxoethyl)amino]ethanesulfonic acid
InChI Key	DBXNUXBLKRLWFA-UHFFFAOYSA-N
Molecular Formula	C4H10N2O4S

433

Ethylenediamine Tetraacetic Acid, MP Biomedicals™

CAS: 60-00-4 Molecular Formula: C10H16N2O8 Molecular Weight (g/mol): 292.24 MDL Number: MFCD00003541 InChI Key: KCXVZYZYPLLWCC-UHFFFAOYSA-N Synonym: EDTA, (Ethylenedinitrilo)tetraacetic acid,Edathamil,Ethylenedinitrilotetraacetic acid IUPAC Name: 2-({2-[bis(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetic acid SMILES: OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CC(O)=O

Pricing & Availability
Specifications

CAS	60-00-4
Molecular Weight (g/mol)	292.24
MDL Number	MFCD00003541
SMILES	OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CC(O)=O
Synonym	EDTA, (Ethylenedinitrilo)tetraacetic acid,Edathamil,Ethylenedinitrilotetraacetic acid
IUPAC Name	2-({2-[bis(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetic acid
InChI Key	KCXVZYZYPLLWCC-UHFFFAOYSA-N
Molecular Formula	C10H16N2O8

434

Tris-Borate-EDTA Buffer, MP Biomedicals™

MDL Number: MFCD00236358 Synonym: TBE buffer

Pricing & Availability
Specifications

MDL Number	MFCD00236358
Synonym	TBE buffer

435

MP Biomedicals™ Phosphate Buffered Saline

Dulbecco's formula without calcium and magnesium

Pricing & Availability

Life Science Buffers

Filtered Search Results

Narrow Results

HEPES Sodium Salt, Biological Buffer, High Purity, 98%, Spectrum™ Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

PIPES, Monosodium Salt, Biological Buffer, High Purity, 98.5%, Spectrum™ Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

HEPES Sodium Salt, Biological Buffer, High Purity, 98%, Spectrum™ Chemical

PIPES, Monosodium Salt, Biological Buffer, High Purity, 98.5%, Spectrum™ Chemical