
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
- (1)
- (1)
- (3)
- (1)
- (117)
- (1)
- (2)
- (1)
- (2)
- (70)
- (1)
- (2)
- (1)
- (1)
- (1)
- (1)
- (10)
- (3)
- (2)
- (2)
- (10)
- (6)
- (1)
- (1)
- (4)
- (2)
- (10)
- (1)
- (3)
- (5)
- (110)
- (114)
- (1)
- (1)
- (1)
- (1)
- (1)
- (11)
- (2)
- (7)
- (1)
- (1)
- (1)
- (2)
- (6)
- (8)
- (29)
- (1)
- (12)
- (22)
- (1)
- (4)
- (1)
- (11)
- (1)
- (3)
- (1)
- (53)
- (8)
- (5)
- (34)
- (162)
- (2)
- (1)
- (1)
- (36)
- (2)
- (1)
- (6)
- (5)
- (1)
- (1)
- (3)
- (18)
- (2)
- (1)
- (27)
- (1)
- (2)
- (5)
- (7)
- (3)
- (9)
- (1)
- (87)
- (178)
- (8)
- (6)
- (11)
- (1)
- (1)
- (4)
- (1)
- (1)
- (1)
- (1)
- (1)
- (2)
- (2)
- (17)
- (147)
- (6)
- (3)
- (1)
- (3)
- (3)
- (7)
- (5)
- (3)
- (6)
- (1)
- (705)
- (5)
- (4)
- (4)
- (121)
- (23)
- (13)
- (28)
- (5)
- (5)
- (2)
- (5)
- (125)
- (2)
- (13)
- (22)
- (3)
- (14)
- (6)
- (6)
- (49)
- (2)
- (1)
- (31)
- (2)
- (13)
- (26)
- (1)
- (2)
- (7)
- (9)
- (9)
- (23)
- (45)
- (4)
- (5)
- (41)
- (11)
- (15)
- (5)
- (13)
- (1)
- (1)
- (3)
- (2)
- (3)
- (1)
- (9)
- (1)
- (9)
- (94)
- (2)
- (3)
- (4)
- (4)
- (3)
- (4)
- (3)
- (1)
- (10)
- (1)
- (3)
- (31)
- (4)
- (4)
- (9)
- (1)
- (3)
- (45)
- (9)
- (1)
- (3)
- (1)
- (4)
- (1)
- (1)
- (2)
- (1)
- (1)
- (3)
- (5)
- (1)
- (4)
- (2)
- (3)
- (5)
- (1)
- (6)
- (4)
- (2)
- (5)
- (3)
- (2)
- (5)
- (10)
- (1)
- (3)
- (3)
- (2)
- (2)
- (2)
- (5)
- (7)
- (1)
- (2)
- (4)
- (2)
- (1)
- (1)
- (3)
- (3)
- (3)
- (1)
- (2)
- (1)
- (3)
- (3)
- (2)
- (15)
- (4)
- (2)
- (4)
- (3)
- (2)
- (2)
- (2)
- (1)
- (6)
- (2)
- (4)
- (3)
- (14)
- (1)
- (1)
- (1)
- (1)
- (17)
- (1)
- (44)
- (2)
- (1)
- (2)
- (9)
- (2)
- (3)
- (12)
- (2)
- (1)
- (2)
- (4)
- (1)
- (1)
- (1)
- (43)
- (1)
- (5)
- (12)
- (2)
- (18)
- (3)
- (1)
- (3)
- (5)
- (1)
- (31)
- (1)
- (71)
- (11)
- (1)
- (59)
- (1)
- (16)
- (2)
- (1)
- (2)
- (1)
- (9)
- (1)
- (47)
- (1)
- (1)
- (7)
- (1)
- (1)
- (7)
- (1)
- (2)
- (1)
- (1)
- (26)
- (5)
- (3)
- (1)
- (18)
- (3)
- (2)
- (5)
- (4)
- (1)
- (6)
- (1)
- (6)
- (91)
- (111)
- (3)
- (6)
- (14)
- (53)
- (1)
- (94)
- (1)
- (30)
- (1)
- (1)
- (63)
- (15)
- (3)
- (40)
- (1)
- (1)
- (12)
- (4)
- (2)
- (2)
- (10)
- (15)
- (2)
- (13)
Filtered Search Results

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 |
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
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 |
Thermo Scientific Chemicals TRIS, 0.5M buffer soln., pH 6.8
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
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 |
Thermo Scientific Chemicals CHES, 0.5M buffer soln, pH 9.0
CAS: 103-47-9 Molecular Formula: C8H17NO3S Molecular Weight (g/mol): 207.288 MDL Number: MFCD00003835 InChI Key: MKWKNSIESPFAQN-UHFFFAOYSA-N PubChem CID: 66898 IUPAC Name: 2-(cyclohexylamino)ethanesulfonic acid SMILES: C1CCC(CC1)NCCS(=O)(=O)O
PubChem CID | 66898 |
---|---|
CAS | 103-47-9 |
Molecular Weight (g/mol) | 207.288 |
MDL Number | MFCD00003835 |
SMILES | C1CCC(CC1)NCCS(=O)(=O)O |
IUPAC Name | 2-(cyclohexylamino)ethanesulfonic acid |
InChI Key | MKWKNSIESPFAQN-UHFFFAOYSA-N |
Molecular Formula | C8H17NO3S |
HEPPSO, 0.2M buffer soln., pH 7.0, Thermo Scientific™
CAS: 68399-78-0 Molecular Formula: C9H20N2O5S Molecular Weight (g/mol): 268.328 MDL Number: MFCD00038351 InChI Key: GIZQLVPDAOBAFN-UHFFFAOYSA-N 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
PubChem CID | 100205 |
---|---|
CAS | 68399-78-0 |
Molecular Weight (g/mol) | 268.328 |
ChEBI | CHEBI:32951 |
MDL Number | MFCD00038351 |
SMILES | C1CN(CCN1CCO)CC(CS(=O)(=O)O)O |
IUPAC Name | 2-hydroxy-3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid |
InChI Key | GIZQLVPDAOBAFN-UHFFFAOYSA-N |
Molecular Formula | C9H20N2O5S |
Tris, 99.0 to 101.0% (Dry Basis)
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
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 |
Tricine, 0.5M buffer soln., pH 6.5, Thermo Scientific™
CAS: 5704-04-1 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 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
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 |
IUPAC Name | 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid |
InChI Key | SEQKRHFRPICQDD-UHFFFAOYSA-N |
Molecular Formula | C6H13NO5 |
Thermo Scientific Chemicals HEPES, 1.0M buffer soln., pH 6.5, Sterile-Filtered
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
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 |
Thermo Scientific Chemicals PIPES, 1.0M buffer soln., pH 6.8
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
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 |
Thermo Scientific Chemicals MOPS, 0.5M buffer soln., pH 7.0
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
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 |
HEPES, 0.5M buffer soln., pH 6.5, Thermo Scientific™
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
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 |
Lab Vision™ Tris-Buffered Saline (25X), Epredia™
Take advantage of a wash buffer for immunolabeling techniques with the Epredia™ Lab Vision™ Tris-Buffered Saline (25X),
HEPES, cGMP Manufactured, 99.5%, Spectrum™ Chemical
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More

Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N IUPAC Name: 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonic acid SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1
CAS | 7365-45-9 |
---|---|
Molecular Weight (g/mol) | 238.30 |
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 |
MOPS Hemisodium Salt, Biological Buffer, Spectrum™ Chemical
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More

Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
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
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 |
MilliporeSigma™ PIPES, Sodium Salt, Molecular biology grade, OmniPur™, Calbiochem™,
CAS: 100037-69-2 Molecular Formula: C16H33N4Na3O12S4 Molecular Weight (g/mol): 670.665 InChI Key: FPDACHMSOMILQI-UHFFFAOYSA-K PubChem CID: 3086462 IUPAC Name: trisodium;2-[4-(2-sulfoethyl)piperazin-1-yl]ethanesulfonate;2-[4-(2-sulfonatoethyl)piperazin-1-yl]ethanesulfonate SMILES: C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)[O-].C1CN(CCN1CCS(=O)(=O)[O-])CCS(=O)(=O)[O-].[Na+].[Na+].[Na+]
PubChem CID | 3086462 |
---|---|
CAS | 100037-69-2 |
Molecular Weight (g/mol) | 670.665 |
SMILES | C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)[O-].C1CN(CCN1CCS(=O)(=O)[O-])CCS(=O)(=O)[O-].[Na+].[Na+].[Na+] |
IUPAC Name | trisodium;2-[4-(2-sulfoethyl)piperazin-1-yl]ethanesulfonate;2-[4-(2-sulfonatoethyl)piperazin-1-yl]ethanesulfonate |
InChI Key | FPDACHMSOMILQI-UHFFFAOYSA-K |
Molecular Formula | C16H33N4Na3O12S4 |