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

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10.81 (14)
100.09 (33)
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≥14% (BF3) (1)
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≥49% (2)
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≥12 to ≤14 (6)
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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)

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Search Within Results

631 – 645 of 43,220 results

631

Thermo Scientific Chemicals Sodium phosphate, 0.5M buffer soln., pH 7.0

Pricing & Availability
Specifications

MDL Number	MFCD00146206
Solubility Information	Fully miscible.
Physical Form	Liquid
pH	7.0
Chemical Name or Material	Sodium phosphate buffer soln.
TSCA	Yes
Recommended Storage	Ambient temperatures
Concentration	0.5 M

632

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

633

Ricca Chemical Company Potassium Chloride Reference Solution C, 1408.8 μS/cm at 25°C, 0.01 M, Ricca Chemical

CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M 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+]
IUPAC Name	potassium chloride
InChI Key	WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Molecular Formula	ClK

634

Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO₃^-), Ricca Chemical

CAS: 7757-79-1 Molecular Formula: KNO3 Molecular Weight (g/mol): 101.10 MDL Number: MFCD00011409 InChI Key: FGIUAXJPYTZDNR-UHFFFAOYSA-N PubChem CID: 24434 ChEBI: CHEBI:63043 IUPAC Name: potassium nitrate SMILES: [K+].[O-][N+]([O-])=O

Pricing & Availability
Specifications

PubChem CID	24434
CAS	7757-79-1
Molecular Weight (g/mol)	101.10
ChEBI	CHEBI:63043
MDL Number	MFCD00011409
SMILES	[K+].[O-][N+]([O-])=O
IUPAC Name	potassium nitrate
InChI Key	FGIUAXJPYTZDNR-UHFFFAOYSA-N
Molecular Formula	KNO3

635

Potassium hydroxide, 1.0N Standardized Solution

CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 SMILES: [OH-].[K+]

Pricing & Availability
Specifications

PubChem CID	14797
CAS	1310-58-3
Molecular Weight (g/mol)	56.11
ChEBI	CHEBI:32035
MDL Number	MFCD00003553
SMILES	[OH-].[K+]
Synonym	potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693
InChI Key	KWYUFKZDYYNOTN-UHFFFAOYSA-M
Molecular Formula	HKO

636

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

637

Chloride Standard, (NaCl in Water), Certified, 1000ppm ±5ppm (1mL = 1mg Cl^-) (0.0282N), LabChem™

CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 MDL Number: MFCD00003477 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium chloride SMILES: [Na+].[Cl-]

Pricing & Availability
Specifications

PubChem CID	5234
CAS	7647-14-5
Molecular Weight (g/mol)	58.44
ChEBI	CHEBI:26710
MDL Number	MFCD00003477
SMILES	[Na+].[Cl-]
IUPAC Name	sodium chloride
InChI Key	FAPWRFPIFSIZLT-UHFFFAOYSA-M
Molecular Formula	ClNa

638

Tris Hydrochloride, Ultra Pure, MP Biomedicals™

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
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

639

Thermo Scientific Chemicals Sodium bicarbonate, 1M buffer soln., pH 9.4

CAS: 144-55-8 Molecular Formula: CHNaO3 Molecular Weight (g/mol): 84.01 MDL Number: MFCD00003528 InChI Key: UIIMBOGNXHQVGW-UHFFFAOYSA-M PubChem CID: 516892 ChEBI: CHEBI:32139 IUPAC Name: sodium;hydrogen carbonate SMILES: [Na+].OC([O-])=O

Pricing & Availability
Specifications

PubChem CID	516892
CAS	144-55-8
Molecular Weight (g/mol)	84.01
ChEBI	CHEBI:32139
MDL Number	MFCD00003528
SMILES	[Na+].OC([O-])=O
IUPAC Name	sodium;hydrogen carbonate
InChI Key	UIIMBOGNXHQVGW-UHFFFAOYSA-M
Molecular Formula	CHNaO3

640

Thermo Scientific Chemicals TRIS-glycine-SDS running buffer (10X), pH 8.5

TRIS-glycine-SDS running buffer (10X), suitable for protein gel analysis, is used in several research areas, including biochemistry, molecular biology, cell biology, and immunology.

Pricing & Availability
Specifications

Solubility Information	It is soluble in water.
Packaging	Plastic bottle
Physical Form	Liquid
Chemical Name or Material	TRIS-glycine-SDS running buffer (10X)
TSCA	Yes
Recommended Storage	Ambient temperatures

641

Methylmagnesium chloride, 3M (22 wt.%) solution in THF, AcroSeal™

CAS: 676-58-4 Molecular Formula: CH3ClMg Molecular Weight (g/mol): 74.79 MDL Number: MFCD00000468 InChI Key: RQNMYNYHBQQZSP-UHFFFAOYSA-M Synonym: methylmagnesium chloride,chloromethylmagnesium,chloro methyl magnesium,magnesium, chloromethyl,memgcl,methylmagnesiumchloride,methyl magnesium chloride,unii-m5e1132g4w,ch3mgcl,qmabhcaih@ PubChem CID: 12670 IUPAC Name: chloro(methyl)magnesium SMILES: C[Mg]Cl

Pricing & Availability
Specifications

PubChem CID	12670
CAS	676-58-4
Molecular Weight (g/mol)	74.79
MDL Number	MFCD00000468
SMILES	C[Mg]Cl
Synonym	methylmagnesium chloride,chloromethylmagnesium,chloro methyl magnesium,magnesium, chloromethyl,memgcl,methylmagnesiumchloride,methyl magnesium chloride,unii-m5e1132g4w,ch3mgcl,qmabhcaih@
IUPAC Name	chloro(methyl)magnesium
InChI Key	RQNMYNYHBQQZSP-UHFFFAOYSA-M
Molecular Formula	CH3ClMg

642

Thermo Scientific Chemicals MES, 0.2M buffer soln., pH 6.0

CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.248 MDL Number: MFCD00283848 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N PubChem CID: 16218417 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate SMILES: C1COCCN1CCS(=O)(=O)O.O

Pricing & Availability
Specifications

PubChem CID	16218417
CAS	145224-94-8
Molecular Weight (g/mol)	213.248
MDL Number	MFCD00283848
SMILES	C1COCCN1CCS(=O)(=O)O.O
IUPAC Name	2-morpholin-4-ylethanesulfonic acid;hydrate
InChI Key	MIIIXQJBDGSIKL-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

643

Phenyltrimethylammonium hydroxide, 0.1 M in methanol

CAS: 1899-02-1 | C9H15NO | 153.23 g/mol

Pricing & Availability
Specifications

Linear Formula	C₆H₅N(CH₃)₃OH
Molecular Weight (g/mol)	153.23
ChEBI	CHEBI:85062
Color	Colorless
Physical Form	Liquid
Chemical Name or Material	Phenyltrimethylammonium hydroxide
SMILES	[OH-].C[N+](C)(C)C1=CC=CC=C1
Concentration	0.09 to 0.11M
InChI Key	HADKRTWCOYPCPH-UHFFFAOYSA-M
Density	0.8000g/mL
PubChem CID	15913
Name Note	0.1M in Methanol
CAS	67-56-1
Health Hazard 3	GHS P Statement: IF exposed: Call a POISON CENTER or doctor/physician. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. IF ON SKIN: Wash with plenty of soap and water. Wear protective gloves/protective clothing/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. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. 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	MFCD00041899
Health Hazard 2	GHS H Statement: Highly flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. Causes damage to organs. Toxic if swallowed. Toxic in contact with skin. Toxic if inhaled. Highly flammable liquid and vapor.
Flash Point	10°C
Health Hazard 1	Danger
Synonym	methelute,phenyltrimethylammonium hydroxide,trimethylanilinium hydroxide,phenyl trimethyl ammonium hydroxide,trimethylphenylammonium hydroxide,n,n,n-trimethylbenzenaminium hydroxide,n,n,n-trimethylanilinium hydroxide,benzenaminium, n,n,n-trimethyl-, hydroxide,ptah,ammonium, phenyltrimethyl-, hydroxide
TSCA	TSCA
RTECS Number	BT2275000
Molecular Formula	C9H15NO
EINECS Number	217-592-3
Formula Weight	153.22
Specific Gravity	0.8

644

Cobalt, AAS standard solution, Specpure™ Co 1000μg/mL

MDL Number: MFCD00010935

Pricing & Availability
Specifications

MDL Number	MFCD00010935

645

Thermo Scientific Chemicals Phenolphthalein, 2% soln. in 95% ethanol

CAS: 77-09-8 Molecular Formula: C20H14O4 Molecular Weight (g/mol): 318.33 MDL Number: MFCD00005913 InChI Key: KJFMBFZCATUALV-UHFFFAOYSA-N Synonym: phenolphthalein,phthalimetten,euchessina,phthalin,espotabs,phenolax,purgophen,koprol,laxogen,trilax PubChem CID: 4764 ChEBI: CHEBI:34914 IUPAC Name: 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one SMILES: OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & Availability
Specifications

PubChem CID	4764
CAS	77-09-8
Molecular Weight (g/mol)	318.33
ChEBI	CHEBI:34914
MDL Number	MFCD00005913
SMILES	OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Synonym	phenolphthalein,phthalimetten,euchessina,phthalin,espotabs,phenolax,purgophen,koprol,laxogen,trilax
IUPAC Name	3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
InChI Key	KJFMBFZCATUALV-UHFFFAOYSA-N
Molecular Formula	C20H14O4

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Buffers and Standards

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Ricca Chemical Company Potassium Chloride Reference Solution C, 1408.8 μS/cm at 25°C, 0.01 M, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO3-), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Chloride Standard, (NaCl in Water), Certified, 1000ppm ±5ppm (1mL = 1mg Cl-) (0.0282N), LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Ricca Chemical Company Potassium Chloride Reference Solution C, 1408.8 μS/cm at 25°C, 0.01 M, Ricca Chemical

Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO₃^-), Ricca Chemical

Chloride Standard, (NaCl in Water), Certified, 1000ppm ±5ppm (1mL = 1mg Cl^-) (0.0282N), LabChem™