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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

 

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1 – 15 of 196 results
1

Carbamates Standard solution 10 components, Fisher Chemical™
BIOPHARMA

All Our Certified Reference Materials and Reagents are produced under an ISO 9001 Quality Management System, also Accredited according to ISO/IEC 17025 and Accredited according to ISO Guide 34.

2

Ritonavir Ethyl Carbamate, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 596.737
Industry Type Pharmaceutical
InChI Formula InChI=1S/C31H40N4O6S/c1-4-40-31(39)35-28(21(2)3)29(37)33-24(15-22-11-7-5-8-12-22)17-27(36)26(16-23-13-9-6-10-14-23)34-30(38)41-19-25-18-32-20-42-25/h5-14,18,20-21,24,26-28,36H,4,15-17,19H2,1-3H3,(H,33,37)(H,34,38)(H,35,39)/t24-,26-,27-,28-/m0/s1
Chemical Name or Material Ritonavir Ethyl Carbamate
SMILES CCOC(=O)N[C@@H](C(C)C)C(=O)N[C@H](C[C@H](O)[C@H](Cc1ccccc1)NC(=O)OCc2cncs2)Cc3ccccc3
Recommended Storage -20°C
IUPAC Name 1,3-thiazol-5-ylmethyl N-[(2S,3S,5S)-5-[[(2S)-2-(ethoxycarbonylamino)-3-methylbutanoyl]amino]-3-hydroxy-1,6-diphenylhexan-2-yl]carbamate
Molecular Formula C31 H40 N4 O6 S
Formula Weight 596.267
Solution Type Neat
Analyte or Component Names Ritonavir Ethyl Carbamate
3

Allyl Carbamate (S)-Pramipexole, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 295.4
Industry Type Pharmaceutical
InChI Formula InChI=1S/C14H21N3O2S/c1-3-7-17(14(18)19-8-4-2)10-5-6-11-12(9-10)20-13(15)16-11/h4,10H,2-3,5-9H2,1H3,(H2,15,16)/t10-/m0/s1
Chemical Name or Material Allyl Carbamate (S)-Pramipexole
SMILES CCCN([C@H]1CCc2nc(N)sc2C1)C(=O)OCC=C
Synonym (S)-Allyl (2-amino-4,5,6,7-tetrahydrobenzo[d]thiazol-6-yl)(propyl)carbamate
IUPAC Name prop-2-enyl N-[(6S)-2-amino-4,5,6,7-tetrahydro-1,3-benzothiazol-6-yl]-N-propylcarbamate
Molecular Formula C14 H21 N3 O2 S
Formula Weight 295.135
Solution Type Neat
Analyte or Component Names Allyl Carbamate (S)-Pramipexole
4

Ethyl [(4-Methylphenyl)sulphonyl]carbamate, 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.

Shipping Condition Room Temperature
CAS 5577-13-9
Molecular Weight (g/mol) 243.28
InChI Formula InChI=1S/C10H13NO4S/c1-3-15-10(12)11-16(13,14)9-6-4-8(2)5-7-9/h4-7H,3H2,1-2H3,(H,11,12)
Chemical Name or Material Ethyl [(4-Methylphenyl)sulphonyl]carbamate
SMILES CCOC(=O)NS(=O)(=O)c1ccc(C)cc1
Synonym Ethyl [(4-Methylphenyl)sulphonyl]carbamate,Gliclazide Imp. C (EP),Gliclazide Impurity C
Recommended Storage +5°C
Certifications/Compliance ISO 17025
IUPAC Name ethyl N-(4-methylphenyl)sulfonylcarbamate
Molecular Formula C10 H13 N O4 S
Formula Weight 243.0565 g/mol
Analyte or Component Names Ethyl [(4-Methylphenyl)sulphonyl]carbamate
5

BB-K 6 N-(Benzyloxy) Carbamate, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 719.735
Industry Type Pharmaceutical
InChI Formula InChI=1S/C30H49N5O15/c31-13-8-14(32)26(24(43)25(13)49-28-21(40)18(33)19(38)17(10-36)48-28)50-29-23(42)22(41)20(39)16(47-29)9-35-27(44)15(37)6-7-34-30(45)46-11-12-4-2-1-3-5-12/h1-5,13-26,28-29,36-43H,6-11,31-33H2,(H,34,45)(H,35,44)/t13-,14+,15+,16-,17-,18+,19-,20-,21-,22+,23-,24-,25+,26-,28-,29-/m1/s1
Chemical Name or Material BB-K 6 N-(Benzyloxy) Carbamate
SMILES N[C@@H]1C[C@H](N)[C@@H](O[C@H]2O[C@H](CNC(=O)[C@@H](O)CCNC(=O)OCc3ccccc3)[C@@H](O)[C@H](O)[C@H]2O)[C@H](O)[C@H]1O[C@H]4O[C@H](CO)[C@@H](O)[C@H](N)[C@H]4O
IUPAC Name benzyl N-[(3S)-4-[[(2R,3S,4S,5R,6R)-6-[(1R,2R,3S,4R,6S)-4,6-diamino-3-[(2S,3R,4S,5S,6R)-4-amino-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2-hydroxycyclohexyl]oxy-3,4,5-trihydroxyoxan-2-yl]methylamino]-3-hydroxy-4-oxobutyl]carbamate
Molecular Formula C30 H49 N5 O15
Formula Weight 719.323
Solution Type Neat
Analyte or Component Names BB-K 6 N-(Benzyloxy) Carbamate
6

Ambroxol (L)-Lactamide tert-Butyl Carbamate, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 550.281
Industry Type Pharmaceutical
InChI Formula InChI=1S/C21H30Br2N2O5/c1-12(26)19(28)24-18-13(9-14(22)10-17(18)23)11-25(20(29)30-21(2,3)4)15-5-7-16(27)8-6-15/h9-10,12,15-16,26-27H,5-8,11H2,1-4H3,(H,24,28)/t12-,15-,16-/m0/s1
Chemical Name or Material Ambroxol (L)-Lactamide tert-Butyl Carbamate
SMILES C[C@H](O)C(=O)Nc1c(Br)cc(Br)cc1CN([C@@H]2CC[C@@H](O)CC2)C(=O)OC(C)(C)C
Synonym tert-Butyl (3,5-dibromo-2-((S)-2-hydroxypropanamido)benzyl)((1r,4S)-4-hydroxycyclohexyl)carbamate
IUPAC Name tert-butyl N-[[3,5-dibromo-2-[[(2S)-2-hydroxypropanoyl]amino]phenyl]methyl]-N-(4-hydroxycyclohexyl)carbamate
Molecular Formula C21 H30 Br2 N2 O5
Formula Weight 548.052
Solution Type Neat
Analyte or Component Names Ambroxol (L)-Lactamide tert-Butyl Carbamate
7

Hexyl N-(4-Aminobenzenecarboximidoyl)carbamate Hydrochloride, 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.

Shipping Condition Room Temperature
CAS 1307233-93-7
Molecular Weight (g/mol) 299.8
InChI Formula InChI=1S/C14H21N3O2.ClH/c1-2-3-4-5-10-19-14(18)17-13(16)11-6-8-12(15)9-7-11;/h6-9H,2-5,10,15H2,1H3,(H2,16,17,18);1H
Chemical Name or Material Hexyl N-(4-Aminobenzenecarboximidoyl)carbamate Hydrochloride
SMILES Cl.CCCCCCOC(=O)NC(=N)c1ccc(N)cc1
Synonym Hexyl N-(4-aminobenzenecarboximidoyl)carbamate hydrochloride,N-[(4-aminophenyl)iminomethyl]-Carbamic acid hexyl ester hydrochloride (1:1)
Recommended Storage +5°C
Certifications/Compliance ISO 17025
IUPAC Name hexyl N-(4-aminobenzenecarboximidoyl)carbamate;hydrochloride
Molecular Formula C14 H21 N3 O2 . Cl H
Formula Weight 299.1401 g/mol
Analyte or Component Names Hexyl N-(4-Aminobenzenecarboximidoyl)carbamate Hydrochloride
8

Methyl [5-Propylsulphonyl)-1H-benzimidazol-2-yl]carbamate, 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.

Shipping Condition Room Temperature
CAS 75184-71-3
Molecular Weight (g/mol) 297.33
InChI Formula InChI=1S/C12H15N3O4S/c1-3-6-20(17,18)8-4-5-9-10(7-8)14-11(13-9)15-12(16)19-2/h4-5,7H,3,6H2,1-2H3,(H2,13,14,15,16)
Chemical Name or Material Albendazole sulfone
SMILES CCCS(=O)(=O)c1ccc2[nH]c(NC(=O)OC)nc2c1
Synonym Carbamic acid, [5-(propylsulfonyl)-1H-benzimidazol-2-yl]-, methyl ester (9CI),Methyl [5-(propylsulfonyl)-1H-benzimidazol-2-yl]carbamate,Methyl [5-Propylsulphonyl)-1H-benzimidazol-2-yl]carbamate,Albendazole Imp. C (EP),SKF-63896,Ph Eur Albendazole Impurity C,Albendazole Impurity C
Recommended Storage +5°C
Certifications/Compliance ISO 17025
IUPAC Name methyl N-(5-propylsulfonyl-1H-benzimidazol-2-yl)carbamate
Molecular Formula C12 H15 N3 O4 S
Formula Weight 297.0783 g/mol
Analyte or Component Names Albendazole sulfone
9

Methyl [5-Propylsulphinyl)-1H-benzimidazol-2-yl]carbamate, 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.

Shipping Condition Room Temperature
CAS 54029-12-8
Molecular Weight (g/mol) 281.33
InChI Formula InChI=1S/C12H15N3O3S/c1-3-6-19(17)8-4-5-9-10(7-8)14-11(13-9)15-12(16)18-2/h4-5,7H,3,6H2,1-2H3,(H2,13,14,15,16)
Chemical Name or Material Albendazole sulfoxide
SMILES CCCS(=O)c1ccc2[nH]c(NC(=O)OC)nc2c1
Synonym Carbamic acid, [5-(propylsulfinyl)-1H-benzimidazol-2-yl]-, methyl ester (9CI),(±)-Albendazole sulfoxide,Albendazole oxide,Methyl [5-(propylsulfinyl)-1H-benzimidazol-2-yl]carbamate,RS 8852,Ricobendazole,Rycobendazole,Albendazole Imp. B (EP),SKF-77664,Ph Eur Albendazole Impurity B,Albendazole Impurity B
Recommended Storage +5°C
Certifications/Compliance ISO 17025
IUPAC Name methyl N-(5-propylsulfinyl-1H-benzimidazol-2-yl)carbamate
Molecular Formula C12 H15 N3 O3 S
Formula Weight 281.0834 g/mol
Analyte or Component Names Albendazole sulfoxide
10

tert-Butyl ((1R,4R)-4-(2-Hydroxyethyl)cyclohexyl)carbamate, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 243.34
Industry Type Pharmaceutical
InChI Formula InChI=1S/C13H25NO3/c1-13(2,3)17-12(16)14-11-6-4-10(5-7-11)8-9-15/h10-11,15H,4-9H2,1-3H3,(H,14,16)/t10-,11-
Chemical Name or Material tert-Butyl ((1R,4R)-4-(2-Hydroxyethyl)cyclohexyl)carbamate
SMILES OCC[C@H]1CC[C@H](NC(OC(C)(C)C)=O)CC1
IUPAC Name tert-butyl N-[4-(2-hydroxyethyl)cyclohexyl]carbamate
Molecular Formula C13H25NO3
Formula Weight 243.18
Solution Type Neat
Analyte or Component Names tert-Butyl ((1R,4R)-4-(2-Hydroxyethyl)cyclohexyl)carbamate
11

Methyl (5-Chloro-1H-benzimidazol-2-yl)carbamate, 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.

Shipping Condition Room Temperature
CAS 20367-38-8
Molecular Weight (g/mol) 225.63
InChI Formula InChI=1S/C9H8ClN3O2/c1-15-9(14)13-8-11-6-3-2-5(10)4-7(6)12-8/h2-4H,1H3,(H2,11,12,13,14)
Chemical Name or Material Methyl (5-Chloro-1H-benzimidazol-2-yl)carbamate
SMILES COC(=O)Nc1nc2cc(Cl)ccc2[nH]1
Synonym Fenbendazole Imp. B (EP),Fenbendazole USP Related Compound B,Fenbendazole USP RC B,N-(6-chloro-1H-benzimidazol-2-yl)-carbamic acid methyl ester,2-Benzimidazolecarbamic acid, 5-chloro-, methyl ester (8CI),Carbamic acid, (5-chloro-1H-benzimidazol-2-yl)-, methyl ester (9CI),2-[(Methoxycarbonyl)amino]-5-chlorobenzimidazole,G 981,Methyl (5-chloro-2-benzimidazolyl)carbamate,Fenbendazole Related Compound B,Albendazole Impurity G,Fenbendazole Impurity B
Recommended Storage +5°C
Certifications/Compliance ISO 9001
IUPAC Name methyl N-(5-chloro-1H-benzimidazol-2-yl)carbamate
Molecular Formula C9 H8 Cl N3 O2
Formula Weight 225.0305 g/mol
Analyte or Component Names Methyl (5-Chloro-1H-benzimidazol-2-yl)carbamate
12

(2-Acetamido-5-chlorophenyl)(phenyl)carbamic Acid tert-Butyl Ester, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 360.84
Industry Type Pharmaceutical
InChI Formula InChI=1S/C19H21ClN2O3/c1-13(23)21-16-11-10-14(20)12-17(16)22(15-8-6-5-7-9-15)18(24)25-19(2,3)4/h5-12H,1-4H3,(H,21,23)
Chemical Name or Material (2-Acetamido-5-chlorophenyl)(phenyl)carbamic Acid tert-Butyl Ester
SMILES ClC1=CC=C(NC(C)=O)C(N(C2=CC=CC=C2)C(OC(C)(C)C)=O)=C1
Synonym (2-Acetamido-5-chlorophenyl)(phenyl)carbamic Acid tert-Butyl Ester,(2-Acetamido-5-chlorophenyl)(phenyl)carbamic Acid tert-Butyl Ester
IUPAC Name tert-butyl (2-acetamido-5-chlorophenyl)(phenyl)carbamate
Molecular Formula C19H21ClN2O3
Formula Weight 360.12
Solution Type Neat
Analyte or Component Names (2-Acetamido-5-chlorophenyl)(phenyl)carbamic Acid tert-Butyl Ester
13

(2,2-Dimethyl-1,3-dioxolan-4-yl)methyl Dibenzyl Carbamate Phosphate, TRC

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

Shipping Condition Room Temperature
Molecular Weight (g/mol) 566.537
Industry Type Pharmaceutical
InChI Formula InChI=1S/C26H35N2O10P/c1-26(2)34-19-23(38-26)20-37-39(31,35-15-13-27-24(29)32-17-21-9-5-3-6-10-21)36-16-14-28-25(30)33-18-22-11-7-4-8-12-22/h3-12,23H,13-20H2,1-2H3,(H,27,29)(H,28,30)
Chemical Name or Material (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl Dibenzyl Carbamate Phosphate
SMILES CC1(C)OCC(COP(=O)(OCCNC(=O)OCc2ccccc2)OCCNC(=O)OCc3ccccc3)O1
Recommended Storage -20°C
IUPAC Name benzyl N-[2-[(2,2-dimethyl-1,3-dioxolan-4-yl)methoxy-[2-(phenylmethoxycarbonylamino)ethoxy]phosphoryl]oxyethyl]carbamate
Molecular Formula C26 H35 N2 O10 P
Formula Weight 566.203
Solution Type Neat
Analyte or Component Names (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl Dibenzyl Carbamate Phosphate
14

Mephenesin Carbamate, LoGiCal

LoGiCal's certified reference materials as neats, native solutions and stable isotope labelled solutions, with expert documentation and support. From forensic to clinical labs, choose LoGiCal for confidence, compliance, and analytical excellence.

15

Chlorphenesin Carbamate, LoGiCal

LoGiCal's certified reference materials as neats, native solutions and stable isotope labelled solutions, with expert documentation and support. From forensic to clinical labs, choose LoGiCal for confidence, compliance, and analytical excellence.