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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

 

Matrix Blanks and Standardization Solutions (479)
Chromatography Standards (325)
Life Science Buffers (128)
General Chemistry Solutions (96)
Spectroscopy Standards (68)
Environmental Testing Standards (55)
Electrochemistry Buffers (25)
Quality Control and Proficiency Samples (6)
Electrochemistry Standards (2)
Karl Fischer Buffers and Reagents (1)

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Ricerca per parola chiave:
1 – 15 di 769 risultati
1

4-Methoxybenzene-1,3-dicarboxylic Acid, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

Peso formulazione 196.0372 g/mol
Sinonimo Picotamide Monohydrate Imp. A (EP),Picotamide Imp. A (EP),2-Methoxy-1,5-benzenedicarboxylic acid,4-Methoxy-1,3-benzenedicarboxylic acid,4-Methoxyisophthalic acid,NSC 20694,Picotamide Monohydrate Impurity A,Picotamide Impurity A
Shipping Condition Room Temperature
Formula molecolare C9 H8 O5
CAS 2206-43-1
Molecular Weight (g/mol) 196.16
InChI Formula InChI=1S/C9H8O5/c1-14-7-3-2-5(8(10)11)4-6(7)9(12)13/h2-4H,1H3,(H,10,11)(H,12,13)
Nomi componenti o analita 4-methoxybenzene-1,3-dicarboxylic acid
Conservazione consigliata +5°C
SMILES COc1ccc(cc1C(=O)O)C(=O)O
Materiale o nome chimico 4-methoxybenzene-1,3-dicarboxylic acid
IUPAC Name 4-methoxybenzene-1,3-dicarboxylic acid
Certificazione/Conformità ISO 17025
2

Pyridine-2,5-dicarboxylic Acid, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

3

Cyclobutane-1,1-dicarboxylic Acid, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

4

2,2'-Bipyridine-5,5'-dicarboxylic Acid (6,6'-Dinicotinic Acid), Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

Peso formulazione 244.0484 g/mol
Sinonimo Nicotinic Acid Imp. B (EP),6,6'-Dinicotinic Acid,2,2'-Bipyridine-5,5'-dicarboxylic Acid,Nicotinic Acid Impurity B
Shipping Condition Room Temperature
Formula molecolare C12 H8 N2 O4
CAS 1802-30-8
Molecular Weight (g/mol) 244.2
InChI Formula InChI=1S/C12H8N2O4/c15-11(16)7-1-3-9(13-5-7)10-4-2-8(6-14-10)12(17)18/h1-6H,(H,15,16)(H,17,18)
Nomi componenti o analita 2,2'-Bipyridine-5,5'-dicarboxylic Acid (6,6'-Dinicotinic Acid)
Conservazione consigliata +5°C
SMILES OC(=O)c1ccc(nc1)c2ccc(cn2)C(=O)O
Materiale o nome chimico 2,2'-Bipyridine-5,5'-dicarboxylic Acid (6,6'-Dinicotinic Acid)
IUPAC Name 6-(5-carboxypyridin-2-yl)pyridine-3-carboxylic acid
5

2,2'-Binaphthalene-6,6'-dicarboxylic Acid, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

6

Benzene-1,2-dicarboxylic Acid (Phthalic Acid), Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

7

Thermo Scientific Chemicals HEPES free acid, 99+%, for molecular biology, DNase, Rnase and Protease free

CAS: 7365-45-9 Formula molecolare: C8H18N2O4S Molecular Weight (g/mol): 238.30 Numero MDL: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N Sinonimo: 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid 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

EDGE
Sinonimo 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid
Numero MDL MFCD00006158
PubChem CID 23831
Formula molecolare C8H18N2O4S
CAS 7365-45-9
Molecular Weight (g/mol) 238.30
ChEBI CHEBI:42334
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
8

(1RS,4SR)-7-(2-Methylpropyl)-1-[4-(2-methyl-propyl)phenyl]-1,2,3,4-tetrahydronaphthalene-1,4-dicarboxylic Acid, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

Peso formulazione 408.2301 g/mol
Sinonimo (1RS,4SR)-7-(2-Methylpropyl)-1-[4-(2-methyl-propyl)phenyl]-1,2,3,4-tetrahydronaphthalene-1,4-dicarboxylic Acid
Shipping Condition Ice pack (-20°C)
Formula molecolare C26 H32 O4
CAS 2517611-89-9
Molecular Weight (g/mol) 408.53
InChI Formula InChI=1S/C26H32O4/c1-16(2)13-18-5-8-20(9-6-18)26(25(29)30)12-11-22(24(27)28)21-10-7-19(14-17(3)4)15-23(21)26/h5-10,15-17,22H,11-14H2,1-4H3,(H,27,28)(H,29,30)/t22-,26+/m0/s1
Nomi componenti o analita (1RS,4SR)-7-(2-Methylpropyl)-1-[4-(2-methyl-propyl)phenyl]-1,2,3,4-tetrahydronaphthalene-1,4-dicarboxylic Acid
Conservazione consigliata -18°C
SMILES CC(C)Cc1ccc(cc1)[C@@]2(CC[C@H](C(=O)O)c3ccc(CC(C)C)cc23)C(=O)O
Materiale o nome chimico (1RS,4SR)-7-(2-Methylpropyl)-1-[4-(2-methyl-propyl)phenyl]-1,2,3,4-tetrahydronaphthalene-1,4-dicarboxylic Acid
IUPAC Name (1S,4R)-6-(2-methylpropyl)-4-[4-(2-methylpropyl)phenyl]-2,3-dihydro-1H-naphthalene-1,4-dicarboxylic acid
Certificazione/Conformità ISO 17025
9

Oxalic Acid and Sulphuric Acid EU Pharmacopoeia, Fisher Chemical™
BIOPHARMA

Pharmacopoeia reagents are intended for use in pharmacopoeia testing and monographs, produced under a GMP compliant ISO 9001 quality management system according to the relevant pharmacopoeia specification, using the pharmacopoeia reagent quality components and water meeting the relevant pharmacopoeia monograph requirement for Purified Water. Some pharmacopoeia standards are also accredited according to ISO 17025 and ISO Guide 43.

10

1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylic Acid Methyl Ester, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

11

1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylic Acid Ethyl Ester, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

12

(3S,7R,7aR)-5-Benzyl-2,2-dimethyl-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic Acid (Penillic Acid of Benzylpenicillin), Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

Peso formulazione 334.0987 g/mol
Sinonimo Benzylpenicillin Benzathine Imp. D (EP),Benzylpenicillin Potassium Imp. D (EP),Benzylpenicillin Procaine Imp. D (EP),(3S,7R,7aR)-5-Benzyl-2,2-dimethyl-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic Acid,Penillic Acid of Benzylpenicillin,Benzylpenicillin Benzathine Impurity D,Benzylpenicillin Potassium Impurity D,Benzylpenicillin Procaine Impurity D,Carbenicillin Sodium Impurity I,Carbenicillin Impurity I,Benzylpenicillin Impurity D
Shipping Condition Room Temperature
Formula molecolare C16 H18 N2 O4 S
CAS 13093-87-3
Molecular Weight (g/mol) 334.39
InChI Formula InChI=1S/C16H18N2O4S/c1-16(2)12(15(21)22)18-10(8-9-6-4-3-5-7-9)17-11(14(19)20)13(18)23-16/h3-7,11-13H,8H2,1-2H3,(H,19,20)(H,21,22)/t11-,12-,13+/m0/s1
Nomi componenti o analita (3S,7R,7aR)-5-Benzyl-2,2-dimethyl-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic Acid (Penillic Acid of Benzylpenicillin)
Conservazione consigliata +5°C
SMILES CC1(C)S[C@@H]2[C@H](N=C(Cc3ccccc3)N2[C@H]1C(=O)O)C(=O)O
Materiale o nome chimico (3S,7R,7aR)-5-Benzyl-2,2-dimethyl-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic Acid (Penillic Acid of Benzylpenicillin)
IUPAC Name (3S,7R,7aR)-5-benzyl-2,2-dimethyl-7,7a-dihydro-3H-imidazo[5,1-b][1,3]thiazole-3,7-dicarboxylic acid
Certificazione/Conformità ISO 17025
13

(1RS,4RS)-7-(2-Methylpropyl)-1-[4-(2-methylpropyl)phenyl]-1,2,3,4-tetrahydronaphthalene-1,4-dicarboxylic Acid, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

14

Bodipy Amino Acid Derivative, TRC

High-purity organic molecules and analytical standards, strategically delivered worldwide to empower innovation and commercial success.

15

(2RS,4S)-2-[[[(2R)-2-Amino-2-phenylacetyl]amino]methyl]-5,5-dimethylthiazolidine-4-carboxylic Acid (Penilloic Acids of Ampicillin), Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

Peso formulazione 323.1304 g/mol
Sinonimo Ampicillin Sodium Imp. F (EP),Ampicillin Imp. F (EP),(2RS,4S)-2-[[[(2R)-2-Amino-2-phenylacetyl]amino]methyl]-5,5-dimethylthiazolidine-4-carboxylic Acid,Penilloic Acids of Ampicillin,Ampicillin Sodium Impurity F,Ampicillin Impurity F
Shipping Condition Ice pack (-20°C)
Formula molecolare C15 H21 N3 O3 S
CAS 124774-48-7 and 124774-49-8
Molecular Weight (g/mol) 323.41
InChI Formula InChI=1S/C15H21N3O3S/c1-15(2)12(14(20)21)18-10(22-15)8-17-13(19)11(16)9-6-4-3-5-7-9/h3-7,10-12,18H,8,16H2,1-2H3,(H,17,19)(H,20,21)/t10?,11-,12+/m1/s1
Nomi componenti o analita Penilloic Acids of Ampicillin
Conservazione consigliata -18°C
SMILES CC1(C)SC(CNC(=O)[C@H](N)c2ccccc2)N[C@H]1C(=O)O
Materiale o nome chimico Penilloic Acids of Ampicillin
IUPAC Name (4S)-2-[[[(2R)-2-amino-2-phenylacetyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
Certificazione/Conformità ISO 9001