Buffers and Standards

Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.

The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:

Red: pH 4.0
Yellow: pH 7.0
Blue: pH 10.0

Chromatography Standards (6,439)

General Chemistry Solutions (2,860)

Spectroscopy Standards (2,009)

Matrix Blanks and Standardization Solutions (1,205)

Electrochemistry Buffers (988)

Life Science Buffers (945)

Electrochemistry Standards (647)

Environmental Testing Standards (401)

Karl Fischer Buffers and Reagents (186)

Kjeldahl Buffers and Reagents (57)

Viscosity Standards (42)

Quality Control and Proficiency Samples (16)

Isotope Standards (4)

Matrix Modifiers (3)

Osmolality Standards (3)

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1 – 15 of 11,800 results

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TE Buffer, Tris-EDTA, 1X Solution, pH 8.0, Molecular Biology, Fisher BioReagents

Pricing and Availability
Specifications

Color	Colorless
Physical Form	Liquid
Chemical Name or Material	Tris-EDTA
Grade	Molecular Biology
DNase	DNase free
Filtered Through	Filtered through a 5-micron filter.
ChemAlert Storage Symbol	Gray
Name Note	1X Solution, pH 8.0
CAS	7732-18-5
Protease	Protease free
Health Hazard 3	Emergency Overview May cause eye, skin, and respiratory tract irritation. Avoid contact with skin and eyes. Do not breathe dust. Do not breathe vapors or spray mist. Wash off immediately with soap and plenty of water removing all contaminated clothes and shoes. Obtain medical attention. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Remove from exposure, lie down. Move to fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. If not breathing, give artificial respiration. Obtain medical attention. NFPA Health:1 Flammability:0 Instability:0
Health Hazard 2	CAUTION!
pH	7.4 to 8.1
Synonym	TE
Recommended Storage	RT

Phosphate Buffered Saline (PBS), 10X Powder, pH 7.4, Fisher BioReagents™

Phosphate Buffered Saline (PBS), 10X Powder provides a convenient way to make 1 L of 10X stock PBS solution.

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HEPES (Fine White Crystals/Molecular Biology), Fisher BioReagents™

Commonly used buffering agent | CAS: 7365-45-9 | C8H18N2O4S | 238.30 g/mol

Pricing and Availability
Specifications

Molecular Weight (g/mol)	238.30
ChEBI	CHEBI:42334
Color	White
Chemical Name or Material	HEPES
Grade	Molecular Biology
SMILES	OCCN1CCN(CCS(O)(=O)=O)CC1
Identification	Pass Test
DNase	DNase free
Merck Index	15, 4689
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
ChemAlert Storage Symbol	Gray
Assay Percent Range	≥99 %
PubChem CID	23831
Absorbance	0.01 max. (0.1M solution) at 280nm
Percent Purity	≥99%
CAS	7365-45-9
Protease	Protease free
Health Hazard 3	Emergency Overview Causes eye, skin, and respiratory tract irritation. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Obtain medical attention. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Obtain medical attention. Do not induce vomiting. Obtain medical attention. Obtain medical attention. . NFPA Health:2 Flammability:1 Instability:1
MDL Number	MFCD00006158
Health Hazard 2	WARNING!
Solubility Information	Soluble in water
pH	5.0 to 6.5
Purity Grade Notes	DNase-, RNase- and Protease-Free
Recommended Storage	RT
Molecular Formula	C8H18N2O4S

PBS, Phosphate Buffered Saline, 10X Solution, Fisher BioReagents™

Commonly used buffer

Pricing and Availability
Specifications

Physical Form	Liquid
Recommended Storage	Room temperature

Hydrogen Peroxide, 50% (Certified), Fisher Chemical

CAS: 7722-84-1 Molecular Formula: H2O2 Molecular Weight (g/mol): 34.014 MDL Number: MFCD00011333 InChI Key: MHAJPDPJQMAIIY-UHFFFAOYSA-N Synonym: oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone PubChem CID: 784 ChEBI: CHEBI:16240 IUPAC Name: hydrogen peroxide SMILES: OO

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Specifications

PubChem CID	784
CAS	7722-84-1
Molecular Weight (g/mol)	34.014
ChEBI	CHEBI:16240
MDL Number	MFCD00011333
SMILES	OO
Synonym	oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone
IUPAC Name	hydrogen peroxide
InChI Key	MHAJPDPJQMAIIY-UHFFFAOYSA-N
Molecular Formula	H2O2

Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM), NIST tested, Fisherbrand™

Use NIST-traceable reference materials for the highest accuracy available. Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM) offer easy calibration with included instructions and temperature chart.

Pricing and Availability
Specifications

Type	Conductivity Standard
For Use With (Equipment)	Conductivity Meter
Solubility	Soluble in water
Color	Clear
Packaging	Bottle
Chemical Name or Material	Conductivity Standard
Certifications/Compliance	ISO 17034
Technique	Calibration of Conductivity Instrument
Solution Type	Calibration Solution

Traceable™ One-Shot™ Conductivity Calibration Standards Certified Reference Material Producer (CRM), Fisherbrand™

Ideal for lab or field applications

Pricing and Availability
Specifications

For Use With (Equipment)	Conductivity Meter
Solubility	Soluble in water
Color	Clear
Packaging	6/Pk.
Chemical Name or Material	Conductivity Standard

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TBE Buffer, Tris-Borate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents™

CAS: 10043-35-3 Synonym: TBE

Pricing and Availability
Specifications

CAS	10043-35-3
Synonym	TBE

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Tris Base (White Crystals or Crystalline Powder/Triple-Crystallized), Fisher BioReagents™

For sensitive molecular biology, tissue culture, and electrophoresis methods | CAS: 77-86-1 | C4H11NO3 | 121.136 g/mol

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Tris Base (White Crystals or Crystalline Powder/Molecular Biology), Fisher BioReagents™

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

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TAE Buffer, Tris-Acetate-EDTA, 50X Solution, Electrophoresis, Fisher BioReagents™

Tris-Acetate-EDTA, CAS Number-77-86-1, 60-00-4, 6850-28-8, TAE, 4L, Gray, Tris (24%), Acetic Acid (5.0%), and EDTA (<2%)., DNase free, Pass Test, Filtered through a 0.2-micron filter., Electrophoresis, 50X Solution, Poly CUBE, Liquid, Protease free, DNase-, RNase- and Protease-Free, RT

Pricing and Availability
Specifications

Name Note	50X Solution
Concentration or Composition (by Analyte or Components)	Tris (24%), Acetic Acid (5.0%), and EDTA (<2%).
CAS	6850-28-8
Protease	Protease free
Physical Form	Liquid
Grade	Electrophoresis
Synonym	TAE
Purity Grade Notes	DNase-, RNase- and Protease-Free
DNase	DNase free
Recommended Storage	RT
Filtered Through	Filtered through a 0.2-micron filter.
ChemAlert Storage Symbol	Gray

Phenol/Chloroform/Isoamyl Alcohol (25:24:1 Mixture, pH 6.7/8.0, Liq.), Fisher BioReagents™

CAS: 108-95-2 Molecular Formula: C6H6O Molecular Weight (g/mol): 94.11 MDL Number: MFCD00002143 InChI Key: ISWSIDIOOBJBQZ-UHFFFAOYSA-N Synonym: carbolic acid,hydroxybenzene,phenic acid,phenylic acid,oxybenzene,benzenol,phenyl hydrate,monophenol,phenyl hydroxide,phenylic alcohol PubChem CID: 996 ChEBI: CHEBI:15882 IUPAC Name: phenol SMILES: OC1=CC=CC=C1

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Specifications

PubChem CID	996
CAS	108-95-2
Molecular Weight (g/mol)	94.11
ChEBI	CHEBI:15882
MDL Number	MFCD00002143
SMILES	OC1=CC=CC=C1
Synonym	carbolic acid,hydroxybenzene,phenic acid,phenylic acid,oxybenzene,benzenol,phenyl hydrate,monophenol,phenyl hydroxide,phenylic alcohol
IUPAC Name	phenol
InChI Key	ISWSIDIOOBJBQZ-UHFFFAOYSA-N
Molecular Formula	C6H6O

TBS, Tris Buffered Saline, 10X Solution, pH 7.4, Molecular Biology, Fisher BioReagents™

Pricing and Availability
Specifications

Boiling Point	100°C
Color	Colorless
Physical Form	Liquid
Chemical Name or Material	Tris Buffered Saline
Grade	Molecular Biology
DNase	DNase free
ChemAlert Storage Symbol	Gray
Name Note	10X Solution
Concentration or Composition (by Analyte or Components)	10X solution contains 1.37M Sodium Chloride, 0.027M Potassium Chloride, and 0.25M Tris/Tris-HCl.
CAS	7732-18-5
Protease	Protease free
pH	7.5
Synonym	TBS
Purity Grade Notes	DNase-, RNase- and Protease-Free
Recommended Storage	RT

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MES (Fine White Crystals), Fisher BioReagents

CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.25 MDL Number: MFCD00149409 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N Synonym: 2-(4-Morpholino)ethane Sulfonic Acid,2-(N-Morpholino)ethanesulfonic acid hydrate PubChem CID: 16218417 IUPAC Name: 2-(morpholin-4-yl)ethane-1-sulfonic acid hydrate SMILES: O.OS(=O)(=O)CCN1CCOCC1

Pricing and Availability
Specifications

PubChem CID	16218417
CAS	145224-94-8
Molecular Weight (g/mol)	213.25
MDL Number	MFCD00149409
SMILES	O.OS(=O)(=O)CCN1CCOCC1
Synonym	2-(4-Morpholino)ethane Sulfonic Acid,2-(N-Morpholino)ethanesulfonic acid hydrate
IUPAC Name	2-(morpholin-4-yl)ethane-1-sulfonic acid hydrate
InChI Key	MIIIXQJBDGSIKL-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

accumet™ pH 1.68 Buffer, Fisherbrand™

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Buffers and Standards

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