| CAS Number | 104-90-5 |
|---|---|
| Molecular Formula | C8H11N |
| Molecular Weight | 121.183 |
| InChI Key | NTSLROIKFLNUIJ-UHFFFAOYSA-N |
| LogP | 2.09 |
| Synonyms |
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Applications:
HPLC Method for Simultaneous Determination of Nicotinic Acid, Nicotinamide, Pyridine Dicarboxylic Acid, Ethyl Methyl Pyridine and Ethyl Nicotinate on Primesep 100 Column
August 29, 2022
Separation type: Liquid Chromatography Mixed-mode
High Performance Liquid Chromatography (HPLC) Method for Analysis of Nicotinic Acid, Nicotinamide, Pyridine Dicarboxylic Acid, Ethyl Methyl Pyridine and Ethyl Nicotinate Nicotinic acid, also known as Niacin or Vitamin B3, is an essential nutrient that plants and animals synthesize from tryptophan. It is also used as a dietary supplement to treat pellagra. A derivative of Nicotinic acid, Nictotinamide, is a key component of the coenzymes nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP+). Pyridine Dicarboxylic acid (PDA), or Dipicolinic acid (DPA), is a key factor in bacterial endospore heat resistance. It also plays an important role in preparing transition metal complexes for ion chromatography. Ethyl Methyl Pyridine is a common precursor to Nicotinic acid. Ethyl nicotinate, or nicotine acid ethyl ester, is a popular topical treatment for ligament, joint, and muscle pain. These 5 organic compounds can be separated, retained, and analyzed on a Primesep 100 mixed-mode column using an analytical method with a simple gradient mobile phase of water, Acetonitrile (MeCN), and a sulfuric acid (H2SO4) buffer. This analysis method can be UV detected at 250 nm with high resolution and peak symmetry.
| Column | Primesep 100, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN – Gradient |
| Buffer | H2SO4 – 0.05% |
| Flow Rate | 1.0 ml/min |
| Detection | UV 250 nm |
| Class of Compounds | Drug, Acid |
| Analyzing Compounds | Nicotinic Acid, Nicotinamide, Pyridine Dicarboxylic Acid, Ethyl Methyl Pyridine and Ethyl Nicotinate |
Application Column
Primesep 100
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select options5-Ethyl-2-methylpyridine
Nicotinamide
Nicotinic Acid/Niacin (3-pyridinecarboxylic acid)
Pyridinedicarboxylic Acid
Separation of 5-Ethyl-2-methylpyridine on Newcrom R1 HPLC column
February 19, 2018
5-Ethyl-2-methylpyridine can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for fast UPLC applications. This liquid chromatography method is scalable and can be used for isolation impurities in preparative separation. It also suitable for pharmacokinetics.
Application Column
Newcrom R1
The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.
Select options