| CAS Number | 108-95-2 |
|---|---|
| Molecular Formula | C6H6O |
| Molecular Weight | 94.113 g/mol |
| InChI Key | ISWSIDIOOBJBQZ-UHFFFAOYSA-N |
| LogP | 1.46 |
| Synonyms |
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Applications:
Control of Cation Exchange Properties by pH of Primesep C Column
Primesep C demonstrates the control of ion-exchange properties of Primesep columns. The peak order of caffeine and benzylamine in a mixture of caffeine, benzylamine, and phenol reverses when the mobile phase modifier is changed from ammonium acetate to trifluoroacetic acid. Control of the separation is possible even with mass spec (LC/MS) compatible mobile phases of water, acetonitrile (MeCN, ACN) and ammonium acetate or trifluoroacetic acid (TFA).
Application Analytes:
Benzylamine
Caffeine
Phenol
HPLC Separation of 8 Generic Compounds on Primesep Columns
Mixed-mode HPLC columns allow to analyze compounds with drastically different properties in one run. Acidic, basic, and neutral compounds can be separated in one run using either isocratic or gradient conditions. In this application, neutral hydrophilic (uracil, phenol and hydroquinone), neutral hydrophobic (toluene), hydrophilic acidic (benzoic acid), hydrophilic basic (lutidine) and hydrophobic basic (amitriptyline) are separated using gradient of ACN. Neutral compounds are retained by reversed-phase mechanism, hydrophilic acidic compound become more hydrophobic at lower pH and retain by reversed-phase mechanism too. Basic compounds are retained by cation exchange mechanism, and hydrophobic basic compounds are retained by reversed-phase and cation-exchange mechanisms. All compounds are resolved within 17 minutes on a short column. Method can be applied to various polar and hydrophobic compounds, which can be separated on one column and in one run. Mixed-mode columns can operate in single or combination of several modes: reversed-phase, ion-exchange, ion-exclusion and HILIC. This mixed-mode HPLC column can be used as a general column for separation of wide range of compounds.Application Analytes:
Amitriptyline
Benzoic Acid
Benzylamine
Hydroquinone
Lutidine
Phenol
Toluene
Uracil
HPLC Separation of Acidic, Basic, and Neutral Compounds
Primesep 100 and Primesep 200 columns can be used as a universal column for analysis of wide range of compounds. These mixed-mode reversed-phase ion-exchange HPLC columns can provide a valuable alternative to traditional reversed-phase column. Amines, amino acids, quaternary amines, and various zwitter-ions can be analyzed along with hydrophobic compounds and organic and inorganic counter-ions. In this application, 8 compounds with different hydrophobic, hydrophilic, basic and acidic properties are separated based on their properties. Primesep 100 column is a mixed-mode HPLC column with a C12 carbon chain and carboxylic acid on the surface with pKa of 1. Primesep 200 column is a mixed-mode HPLC column with a C12 carbon chain and carboxylic acid on the surface with pKa of 2. These columns can be used with 100% organic (ACN) and 100% aqueous mobile phases. This HPLC method can be adopted as a generic and robust approach for analysis of acidic, basic and neutral compounds within the same run.
Application Analytes:
Amitriptyline
Benzoic Acid
Benzylamine
Hydroquinone
Lutidine
Phenol
Toluene
Uracil
HPLC Separation of Amino Acids, Bases, Acids, and Neutrals on Obelisc R
| Column | Obelisc R, 4.6x250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O - 35/65% |
| Buffer | AmAc 10 mM pH 4.0 |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds | Drug, Acid, Bases, Neutral, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Amino acids |
Application Analytes:
2,6-Lutidine
Benzoic Acid
Benzonitrile
Benzylamine
Phenol
Phenylalanine
Pyridine
Toluene
Tryptophan
Generic Screening Method for Complex Mixtures
Application Analytes:
2,3-Dihydroxybenzoic Acid
2,6-Lutidine
Amitriptyline
Benzoic Acid
Benzylamine
DOPA (3,4-dihydroxy-L-phenylalanine)
Epinephrine
Ethyl Paraben
Homovanillic Acid
Hydroxytryptophan
Methylparaben
Phenol
Toluene
Tryptophan
Uracil