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 (23,985)

Spectroscopy Standards (5,620)

General Chemistry Solutions (5,037)

Matrix Blanks and Standardization Solutions (4,259)

Life Science Buffers (4,140)

Electrochemistry Buffers (2,348)

Environmental Testing Standards (1,846)

Electrochemistry Standards (1,237)

Karl Fischer Buffers and Reagents (470)

Isotope Standards (377)

Viscosity Standards (253)

Quality Control and Proficiency Samples (180)

Kjeldahl Buffers and Reagents (90)

Gel Filtration Standards (57)

Matrix Modifiers (29)

Osmolality Standards (12)

Smoke Point Reference (9)

Polarimetric Standards (6)

Narrow Results

special offers

Clearance (2)
Equipment Days (24)
New Lab Start-Up (815)
Offers (26)

special interests

Available on GSA/VA Contract (381)
SureTRACE (78)
Fast Shipping (153)
Greener Choice (95)
Production Products (191)
Science Education (209)
Small and Specialty Supplier (7,029)

Grade

AAS (66)
ACS (56)
ACS Reagent (25)
ACS/ASTM E 200/AOAC/EPA (7)
ACS/ASTM E 200/AOAC/USP Volumetric (5)
APHA/EPA (5)
APHA/Hazen (5)

Show all

Molecular Weight (g/mol)

0.00 (1)
10.81 (14)
100.09 (33)
100.117 g/mol (1)
100.12 (1)
100.121 (1)
100.15 (1)

Show all

Quantity

0.1 mol (1)
0.5 L (1)
0.5 mL (15)
0.5 mol (1)
1 Bottle (5)
1 Box (1)
1 Ea. (5)

Show all

Percent Purity

≥ 4400 Units/mg (Nystatin) ≥ 5000 Units/mg (Nystatin) (1) (8)
≥ 85.0 % (1)
≥14% (BF3) (1)
≥30% (RT) (1)
≥30% (titration) (1)
≥35% (RT) (1)
≥40% (3)

Show all

pH

≥12 to ≤14 (6)
>11.5 (1)
>12 (44)
>13 (97)
>8 (1)
<0.5 (3)
<1 (98)

Show all

Solvent or Matrix

#2 Diesel Fuel (12)
10% HCl (19)
10% HCl/1% HNO₃ (1)
10% HNO3 (13)
15% HCl (3)
15% HNO₃ (2)
2% HCl (29)

Show all

Concentration

≈0.000027 M (3)
≈0.0035 M (3)
≥30% (1)
≤0.1% in nitric acid (1)
≤2.5% KCl (T) (8)
0.00017 M (3)
0.001 M KCl (1)

Show all

Physical Form

Aqueous Solution (35)
Capsule (11)
Chemvelope (1)
Clear Liquid (1)
Clear Liquid at 20°C (2)
Colorless Liquid (1)
Crystalline (22)

Show all

Technique

AA (467)
Acidimetry (3)
Calibrating the absorbance of spectrophotometers (1)
Calibration (7)
Calibration and Matrix Spikes (1)
Calibration and Verification (16)
Calibration and Verification of Kinematic and Dynamic Viscosity Test (15)

Show all

Solution Type

Antigen Retrieval Reagent (1)
Aqueous (3)
Buffer (469)
Buffer, Storage (4)
Calibration (8)
Cleaning, Storage, pH Buffer (15)
Colored pH Buffer (35)

Show all

Search Within Results

571 – 585 of 44,335 results

571

Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability
Specifications

CAS	7732-18-5
For Use With (Equipment)	pH Meter and Electrode
Physical Form	Liquid
pH	10
CAS Min %	0.03
Chemical Name or Material	Buffer, Reference Standard
Concentration	1X
For Use With (Application)	Calibration
Solution Type	pH Buffer
CAS Max %	0.03

572

Promotions Available

Cabozantinib (S)-malate, Thermo Scientific™

CAS: 1140909-48-3 Molecular Formula: C32H30FN3O10 Molecular Weight (g/mol): 635.60 MDL Number: MFCD20923480 InChI Key: HFCFMRYTXDINDK-UHFFFAOYNA-N IUPAC Name: 2-hydroxybutanedioic acid; N'1-{4-[(6,7-dimethoxyquinolin-4-yl)oxy]phenyl}-N1-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide SMILES: OC(CC(O)=O)C(O)=O.COC1=C(OC)C=C2C(OC3=CC=C(NC(=O)C4(CC4)C(=O)NC4=CC=C(F)C=C4)C=C3)=CC=NC2=C1

Pricing & Availability
Specifications

CAS	1140909-48-3
Molecular Weight (g/mol)	635.60
MDL Number	MFCD20923480
SMILES	OC(CC(O)=O)C(O)=O.COC1=C(OC)C=C2C(OC3=CC=C(NC(=O)C4(CC4)C(=O)NC4=CC=C(F)C=C4)C=C3)=CC=NC2=C1
IUPAC Name	2-hydroxybutanedioic acid; N'1-{4-[(6,7-dimethoxyquinolin-4-yl)oxy]phenyl}-N1-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
InChI Key	HFCFMRYTXDINDK-UHFFFAOYNA-N
Molecular Formula	C32H30FN3O10

573

Thermo Scientific Chemicals MOPS, 1.0M 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

Pricing & Availability
Specifications

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

574

Dimethylamine, 2M solution in THF, AcroSeal™, Thermo Scientific Chemicals

Pricing & Availability
Specifications

Linear Formula	NH(CH₃)₂
Molecular Weight (g/mol)	45.085
ChEBI	CHEBI:17170
InChI Key	ROSDSFDQCJNGOL-UHFFFAOYSA-N
Density	0.8500g/mL
PubChem CID	674
Name Note	2M solution in THF
Formula Weight	45.08
Color	Yellow
Physical Form	Solution
Chemical Name or Material	Dimethylamine
SMILES	CNC
Merck Index	15, 3250
Concentration	About 2M, exact strength on the certificate of analysis
CAS	109-99-9
Health Hazard 3	GHS P Statement Wear eye protection/face protection. Immediately call a POISON CENTER or doctor/physician. Avoid breathing dust/fume/gas/mist/vapors/spray. Keep container tightly closed. Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
MDL Number	MFCD00008288
Health Hazard 2	GHS P Statement Causes severe skin burns and eye damage. May cause respiratory irritation. Suspected of causing cancer. Highly flammable liquid and vapor. May form explosive peroxides.
Flash Point	−17°C
Packaging	AcroSeal™ Glass Bottle
Solubility Information	Solubility in water: soluble. Other solubilities: soluble in most organic solvents
Health Hazard 1	Danger
Synonym	dimethylamine,n,n-dimethylamine,methanamine, n-methyl,dimethylamin,dimethyl amine,dimethyl-amine,dimethylamine anhydrous,rcra waste number u092,dimethylamine solution
IUPAC Name	N-methylmethanamine
Molecular Formula	C2H7N
Specific Gravity	0.85

575

ICP-MS QC Standard solution 20, Specpure™

Pricing & Availability

576

Tris Hydrochloride, Ultra Pure, MP Biomedicals™

CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonym: Tris(hydroxymethyl)aminomethane hydrochloride, TRIS 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 hydrochloride, TRIS HCl
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride
InChI Key	QKNYBSVHEMOAJP-UHFFFAOYSA-N
Molecular Formula	C4H12ClNO3

577

Potassium Chloride Saturated, Electrode Filling Solution, Certified, ≥ 4.0M, LabChem™

CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M Synonym: potassium chloride,enseal,muriate of potash,klotrix,sylvite,slow-k,potassium chloride kcl,klor-con,chlorvescent,kalitabs PubChem CID: 4873 ChEBI: CHEBI:32588 IUPAC Name: potassium chloride SMILES: [Cl-].[K+]

Pricing & Availability
Specifications

PubChem CID	4873
CAS	7447-40-7
Molecular Weight (g/mol)	74.55
ChEBI	CHEBI:32588
MDL Number	MFCD00011360
SMILES	[Cl-].[K+]
Synonym	potassium chloride,enseal,muriate of potash,klotrix,sylvite,slow-k,potassium chloride kcl,klor-con,chlorvescent,kalitabs
IUPAC Name	potassium chloride
InChI Key	WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Molecular Formula	ClK

578

Buffer Solution pH 12.0 at 25°C, LabChem™

Pricing & Availability
Specifications

Linear Formula	Na₂HPO₄
Color	Colorless
Traceability to NIST	Traceable to NIST
Physical Form	Liquid
Chemical Name or Material	Buffer Solution pH 12.0 at 25°C
Grade	Certified
Identification	Passes Test
Density	1g/mL
CAS	1310-73-2
Decomposition Information	Phosphine; Phosphorus oxides; Phosgene; Thermal decomposition generates: Corrosive vapors
Solubility Information	Soluble in water
Packaging	Poly Bottle
pH	12.00 ±0.05
Recommended Storage	Room Temperature
Formula Weight	141.96
Specific Gravity	1g/mL
CAS Max %	0.07

579

Ethylenediaminetetraacetic Acid, in PBS, MP Biomedicals

CAS: 6381-92-6 Molecular Formula: C10H18N2Na2O10 Molecular Weight (g/mol): 372.24 MDL Number: MFCD00150037,MFCD00003541 InChI Key: OVBJJZOQPCKUOR-UHFFFAOYSA-L Synonym: edta disodium salt,cal-ex decalcifier,buffer solution, ph 10.00,sodium di ethylenediamine tetraacetate dihydrate,ethylenediamine tetraacetic acid, disodium salt dihydrate,ethylenediamine tetraacetic acid, disodium salt, standard solution,sodium di ethylenediamine tetraacetate standard solution,ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs PubChem CID: 44120005 IUPAC Name: disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate SMILES: O.O.[Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

Pricing & Availability
Specifications

PubChem CID	44120005
CAS	6381-92-6
Molecular Weight (g/mol)	372.24
MDL Number	MFCD00150037,MFCD00003541
SMILES	O.O.[Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O
Synonym	edta disodium salt,cal-ex decalcifier,buffer solution, ph 10.00,sodium di ethylenediamine tetraacetate dihydrate,ethylenediamine tetraacetic acid, disodium salt dihydrate,ethylenediamine tetraacetic acid, disodium salt, standard solution,sodium di ethylenediamine tetraacetate standard solution,ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs
IUPAC Name	disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate
InChI Key	OVBJJZOQPCKUOR-UHFFFAOYSA-L
Molecular Formula	C10H18N2Na2O10

580

Thermo Scientific Chemicals Potassium phosphate, 0.2M buffer soln., pH 7.4

CAS: 7778-77-0 Molecular Formula: H2KO4P Molecular Weight (g/mol): 136.08 MDL Number: MFCD00011401 MFCD00147253 InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M IUPAC Name: potassium dihydrogen phosphate SMILES: [K+].OP(O)([O-])=O

Pricing & Availability
Specifications

CAS	7778-77-0
Molecular Weight (g/mol)	136.08
MDL Number	MFCD00011401 MFCD00147253
SMILES	[K+].OP(O)([O-])=O
IUPAC Name	potassium dihydrogen phosphate
InChI Key	GNSKLFRGEWLPPA-UHFFFAOYSA-M
Molecular Formula	H2KO4P

581

Thermo Scientific Chemicals Tris(hydroxymethyl)aminomethane hydrochloride, 1M soln., pH 7,4, RNase free

CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 MDL Number: MFCD00012590 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonym: tris hydrochloride,tris hydroxymethyl aminomethane hydrochloride,2-amino-2-hydroxymethyl propane-1,3-diol hydrochloride,tromethamine hydrochloride,tris hcl,Tris-HCl,2-amino-2-hydroxymethyl-1,3-propanediol hydrochloride,tris buffer hydrochloride,1,3-propanediol, 2-amino-2-hydroxymethyl-, hydrochloride 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
MDL Number	MFCD00012590
SMILES	C(C(CO)(CO)N)O.Cl
Synonym	tris hydrochloride,tris hydroxymethyl aminomethane hydrochloride,2-amino-2-hydroxymethyl propane-1,3-diol hydrochloride,tromethamine hydrochloride,tris hcl,Tris-HCl,2-amino-2-hydroxymethyl-1,3-propanediol hydrochloride,tris buffer hydrochloride,1,3-propanediol, 2-amino-2-hydroxymethyl-, hydrochloride
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride
InChI Key	QKNYBSVHEMOAJP-UHFFFAOYSA-N
Molecular Formula	C4H12ClNO3

582

Sulfate, Ion chromatography standard solution, Specpure™, SO4-2 1000μg/mL

MDL Number: MFCD00145343

Pricing & Availability
Specifications

MDL Number	MFCD00145343

583

EP Reference Solution BY₆, Brownish-Yellow Reference Solution, Ricca Chemical

Pricing & Availability

584

Tetrahydrofuran (stabilized with BHT) 99.5+%, TCI America™

CAS: 109-99-9 Molecular Formula: C4H8O Molecular Weight (g/mol): 72.11 MDL Number: MFCD00005356 InChI Key: WYURNTSHIVDZCO-UHFFFAOYSA-N Synonym: tetrahydrofuran,furan, tetrahydro,butylene oxide,furanidine,hydrofuran,tetramethylene oxide,oxacyclopentane,1,4-epoxybutane,tetrahydrofuranne,tetraidrofurano PubChem CID: 8028 ChEBI: CHEBI:26911 IUPAC Name: oxolane SMILES: C1CCOC1

Pricing & Availability
Specifications

PubChem CID	8028
CAS	109-99-9
Molecular Weight (g/mol)	72.11
ChEBI	CHEBI:26911
MDL Number	MFCD00005356
SMILES	C1CCOC1
Synonym	tetrahydrofuran,furan, tetrahydro,butylene oxide,furanidine,hydrofuran,tetramethylene oxide,oxacyclopentane,1,4-epoxybutane,tetrahydrofuranne,tetraidrofurano
IUPAC Name	oxolane
InChI Key	WYURNTSHIVDZCO-UHFFFAOYSA-N
Molecular Formula	C4H8O

585

Diisobutylaluminium hydride, 1.0M solution in heptane, AcroSeal™

CAS: 1191-15-7 | C₈H₁₉Al

Pricing & Availability
Specifications

Linear Formula	[(CH₃)₂CHCH₂]₂AIH
Color	Undesignated
Physical Form	Solution
Chemical Name or Material	Diisobutylaluminium hydride
Merck Index	15, 3212
Concentration	19.5 to 20.5% (DIBAL-H, on Al basis)
Density	0.7000g/mL
Name Note	1.0M Solution in Heptane
Fieser	01,260; 02,140; 03,101; 04,158; 05,224; 06,198; 07,111; 08,173; 09,171; 10,149; 11,185; 12,191; 13,115; 14,138; 15,137; 16,27; 17,123
CAS	142-82-5
Health Hazard 3	GHS P Statement: IF SWALLOWED: rinse mouth. Do NOT induce vomiting. Wear eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Avoid breathing dust/fume/gas/mist/vapors/spray. IF SWALLOWED: Immediately call a POISON CENTRE or doctor/physician. Do NOT induce vomiting. Avoid release to the environment. Store in a dry place. Store in a closed container. WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number	MFCD00008928
Health Hazard 2	GHS H Statement: Causes severe skin burns and eye damage. May be fatal if swallowed and enters airways. May cause drowsiness or dizziness. Very toxic to aquatic life with long lasting effects. In contact with water releases flammable gases which may ignite spontaneously.
Flash Point	−1°C
Solubility Information	Solubility in water: vigorous reaction. Other solubilities: miscible with saturated aliphatic and aromatic, hydrocarbons
Health Hazard 1	Danger
Synonym	DIBAL-H, 1.0M solution in heptane
Beilstein	04, IV, 4400
Molecular Formula	C₈H₁₉Al
Formula Weight	142.22
Specific Gravity	0.7
Melting Point	-70.0°C

Buffers and Standards

Filtered Search Results

Narrow Results

Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C, Ricca Chemical SureTRACESupports traceability with guaranteed access to certificates and proactive change notifications.Learn More

Potassium Chloride Saturated, Electrode Filling Solution, Certified, ≥ 4.0M, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Buffer Solution pH 12.0 at 25°C, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C, Ricca Chemical

Potassium Chloride Saturated, Electrode Filling Solution, Certified, ≥ 4.0M, LabChem™

Buffer Solution pH 12.0 at 25°C, LabChem™