Vitamin B1 (Thiamine)

Vitamin B1 (Thiamine) structural formula

CAS Number59-43-8
Molecular FormulaC12H17ClN4OS
Molecular Weight300.810
InChI KeyMYVIATVLJGTBFV-UHFFFAOYSA-M
LogP-1.42
Synonyms
  • Thiamine
  • 3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride
  • Thiazolium, 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methyl-, chloride (1:1)
  • 59-43-8
  • Vitamin B1
  • Thiazolium, 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methyl- chloride
  • 3-[(4-Amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium chloride
  • Aneurine
  • Apatate Drape
  • Bethiamin
  • Oryzanin
  • Thiacoat
  • Thiamin
  • Thiamine monochloride
  • Thiazolium, 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methyl- chloride (1:1)
  • tiamina
  • Vitaneurin
  • 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2-hydrox yethyl)-4-methylthiazolium chloride
  • 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2-hydroxyethyl)-4-methylthiazolium chloride
  • EINECS 200-425-3
  • Oryzanine
  • Thiaminum
  • UNII-X66NSO3N35
  • thiamine(1+) chloride
  • 100660-17-1
  • 115461-66-0
  • 55463-15-5
  • 57777-32-9

Applications:

HPLC LC MS Method for Analysis of Thiamine on Chromni Column

June 23, 2026

HPLC Method for Analysis of Vitamin B1 (Thiamine) on Chromni Column by SIELC Technologies

High Performance Liquid Chromatography (HPLC) Method for Analysis of Vitamin B1 (Thiamine).

Thiamine, also known as vitamin B1, is an essential nutrient with the chemical formula C12H17ClN4OS. It plays a crucial role in energy metabolism and the proper functioning of the nervous system. It helps the body convert carbohydrates into energy and is vital for the growth, development, and function of cells. You can find detailed UV spectra of Vitamin B1 (Thiamine) and information about its various lambda maxima by visiting the following link.

Vitamin B1 (Thiamine) can be retained and analyzed using the Chromni stationary phase column. The analysis utilizes an gradient method with a simple mobile phase consisting of water and acetonitrile (MeCN) with a ammonium formate buffer. Detection is performed using LC MS.

Condition

ColumnChromni, 2.1 x 150 mm, 3 µm, 100 A, surface coated
Mobile PhaseGradient MeCN/H2O – 70/30 – 40/60%, 10 min
BufferAmmonium formate pH 3.0 – 20 mM
Flow Rate0.2 ml/min
DetectionESI-SIM: [M+2H]2+ 265.1
Limit Of Detection*4 ppb
*LOD was determined for this combination of instrument, method, and analyte, and it can vary from one laboratory to another even when the same general type of analysis is being performed.

Description

Class of CompoundsVitamin
Analyzing CompoundsVitamin B1 (Thiamine)

Application Column

Chromni

Column Diameter: 2.1 mm
Column Length: 150 mm
Particle Size: 3 µm
Pore Size: 100 A
Column options: surface coated

Add to cart
Application Analytes:
Vitamin B1 (Thiamine)

Application Detection:
LC MS Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Method for Separation of 8 Water-Soluble Vitamins on Chromni Column

September 17, 2025

HPLC Method for Separation of 8 Water-Soluble Vitamins on Chromni by SIELC Technologies

High Performance Liquid Chromatography (HPLC) Method for separation of Vitamin B2 (Riboflavin), Nicotinic Acid (Vitamin B3), Vitamin B6 (Pyridoxine), Folic Acid, Cyanocobalamin, Thiamine diphosphate (Thiamine pyrophosphate), Vitamin B1 (Thiamine), Pantothenic Acid (Vitamin B5), Biotin

Riboflavin (B2), Nicotinic Acid (B3), Folic Acid (B9), Cyanocobalamin (B12), Thiamine Pyrophosphate (coenzyme of B1), Thiamine (B1), Pantothenic Acid (B5), Biotin (B7) are water soluble vitamins with a key function of energy metabolism. These coenzymes are responsible for converting food into usable energy.

Pantothenic Acid, also known as vitamin B5, is an essential nutrient with the chemical formula C19H17NO5. It plays a crucial role in energy and coenzyme A production. That energy and coenzyme are used for synthesis and degradation of proteins, carbohydrates, and fats. You can find detailed UV spectra of Pantothenic Acid (Vitamin B5) and information about its various lambda maxima by visiting the following link.

Biotin (Vitamin B7) is a water-soluble vitamin with the chemical formula C10H16N2O3S. It helps the body breakdown key nutrients in order for it to absorb and utilize them. A lack of biotin can lead to hair loss, rash, and brittle nails. A healthy diet including eggs, milk, and bananas can supply the body with a healthy dose of biotin. You can find detailed UV spectra of Biotin and information about its various lambda maxima by visiting the following link.

Nicotinic acid, also known as niacin and vitamin B3, is a water-soluble B vitamin with C₆H₅NO₂ molecular formula. It is an essential nutrient that is crucial for energy production. Nicotinic acid is commonly used as a dietary supplement to treat vitamin B3 deficiency, and it’s also prescribed in higher doses to help lower cholesterol levels. It works by dilating blood vessels, which can lead to a flushing sensation, hence it is sometimes referred to as “flushing niacin.” You can find detailed UV spectra of Niacin and information about its various lambda maxima by visiting the following link.

Riboflavin, also known as Vitamin B2, is an essential vitamin with the chemical formula C17H20N4O6. It is crucial in the formation of flavin mononucleotide and flavin adenine dinucleotide. Those coenzyme are involved in a large variety of tasks, including but not limited to energy metabolism, cellular respiration, antibody production, and metabolism of niacin and folate. It is also used as yellow food coloring. You can find detailed UV spectra of Riboflavin and information about its various lambda maxima by visiting the following link.

Folic Acid, also known as vitamin B9, folic acid is crucial for many functions in the body, including DNA synthesis and repair, cell division, and growth. As an essential vitamin, Folic acid must be obtained through diet or supplementation, as humans cannot synthesize it. Vitamin B-9 is a crucial prenatal vitamin. that also helps the body use iron properly. It has the chemical formula C19H19N7O6. You can find detailed UV spectra of Folic Acid and information about its various lambda maxima by visiting the following link.

Thiamine, also known as vitamin B1, is an essential nutrient with the chemical formula C12H17ClN4OS. It plays a crucial role in energy metabolism and the proper functioning of the nervous system. It helps the body convert carbohydrates into energy and is vital for the growth, development, and function of cells. You can find detailed UV spectra of Vitamin B1 (Thiamine) and information about its various lambda maxima by visiting the following link.

Cyanocobalamin, also known as vitamin B12, is an essential nutrient with the chemical formula C63H88CoN14O14P. It is naturally present in some foods and available as a dietary supplement and as prescription medication. Vitamin B12 exists in several forms and contains the mineral cobalt, so compounds with vitamin B12 activity are collectively called “cobalamins”. It plays an essential role in the production of the red blood cells and DNA, as well as in the proper functioning of the nervous system. You can find detailed UV spectra of Cyanocobalamin and information about its various lambda maxima by visiting the following link.

Thiamine Pyrophosphate, an active form of  Vitamin B1, is a vitamin with the chemical formula C12H19N4O7P2S+. B1 is a water soluble vitamin with a key function of energy metabolism. It is not produced in the body naturally and is stored in very small amounts; therefore must be regularly consumed through diet of whole rains, nuts, seeds, and legumes. It is vital as a coenzyme in carbohydrate metabolism and in decarboxylation of pyruvate, alpha-ketoglutarate, and branched-chain keto acids. You can find detailed UV spectra of Thiamine and information about its various lambda maxima by visiting the following link.

Vitamin B2 (Riboflavin), Nicotinic Acid (Vitamin B3), Vitamin B6 (Pyridoxine), Folic Acid, Cyanocobalamin, Thiamine diphosphate (Thiamine pyrophosphate), Vitamin B1 (Thiamine), Pantothenic Acid (Vitamin B5), Biotin can be retained and analyzed using the Chromni stationary phase column. The analysis utilizes a gradient method with a simple mobile phase consisting of water, acetonitrile (MeCN). Detection is performed using UV.

ColumnChromni, 4.6 x 150 mm, 3 µm, 100 A, dual ended
Mobile PhaseMeCN/H2O – see table
BufferH3PO4 – see table
Flow Rate1.0 ml/min
DetectionUV 200 nm, 275 nm

Gradient Elution Program for HPLC Method

Time (min)A – H2O (%)B – MeCN (%)C – H3PO4 1% in H2O (%)Notes
009010Starting Conditions (Hold)
409010Gradient Start
15203050Gradient End
15.0109010Column Equilibration
2509010End of Run

Class of CompoundsVitamins
Analyzing CompoundsVitamin B2 (Riboflavin), Nicotinic Acid (Vitamin B3), Vitamin B6 (Pyridoxine), Folic Acid, Cyanocobalamin, Thiamine diphosphate (Thiamine pyrophosphate), Vitamin B1 (Thiamine), Pantothenic Acid (Vitamin B5), Biotin

Application Column

Chromni

Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 3 µm
Pore Size: 100 A
Column options: dual ended

Add to cart
Application Analytes:
Biotin
Cyanocobalamin
Folic Acid
Nicotinic Acid (Vitamin B3)
Pantothenic Acid (Vitamin B5)
Thiamine diphosphate (Thiamine pyrophosphate)
Vitamin B1 (Thiamine)
Vitamin B2 (Riboflavin)
Vitamin B6 (Pyridoxine)
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Method for Analysis of Water-Soluble Vitamins (B1, B2, B3, B6) on Primesep 100 Column

August 28, 2024

High Performance Liquid Chromatography (HPLC) Method for Analysis of Water-Soluble Vitamins (B1, B2, B3, B6) on Primesep 100 by SIELC Technologies

Separation type: Liquid Chromatography Mixed-mode SIELC Technologies


 High Performance Liquid Chromatography (HPLC) Method for Analysis of Vitamin B1 (Thiamine), Vitamin B2 (Riboflavin), Nicotinamide, Vitamin B6 (Pyridoxine), Pyridoxamine, Pyridoxal Phosphate

Water-Soluble Vitamins (B1, B2, B3, B6) can be retained, separated and analyzed using a Primesep 100 mixed-mode stationary phase column. The analysis employs an gradient method with a simple mobile phase comprising water, acetonitrile (MeCN), and sulfuric acid as a buffer. This method allows for detection using UV 300 nm.

You can find detailed UV spectra of Vitamin B1 (Thiamine), Vitamin B2 (Riboflavin), Nicotinamide, Vitamin B6 (Pyridoxine), Pyridoxamine, Pyridoxal Phosphate and information about its various lambda maxima by visiting the following links: Vitamins (B1, B2, B3, B6)

ColumnPrimesep 100, 4.6 x 150 mm, 5 µm, 100 A, dual ended
Mobile PhaseMeCN – 10%
BufferGradient H2SO4 -0.1-0.5% in 10 min
Flow Rate1.0 ml/min
DetectionUV 270 nm

Class of Compounds
Water-Soluble Vitamins (B1, B2, B3, B6)
Analyzing CompoundsVitamin B1 (Thiamine), Vitamin B2 (Riboflavin), Nicotinamide, Vitamin B6 (Pyridoxine), Pyridoxamine, Pyridoxal Phosphate

Application Column

Primesep 100

Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended

Add to cart
Application Analytes:
Nicotinamide
Pyridoxal Phosphate
Pyridoxamine
Vitamin B1 (Thiamine)
Vitamin B2 (Riboflavin)
Vitamin B6 (Pyridoxine)

Application Detection:
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Method for Analysis of Thiamine on Primesep 100 Column

August 13, 2024

High Performance Liquid Chromatography (HPLC) Method for Analysis of Vitamin B1 (Thiamine) on Primesep 100 by SIELC Technologies

Separation type: Liquid Chromatography Mixed-mode SIELC Technologies

HPLC Method for Analysis of Vitamin B1 (Thiamine) on Primesep 100 Column


 High Performance Liquid Chromatography (HPLC) Method for Analysis of Vitamin B1 (Thiamine)

Thiamine, also known as vitamin B1, is an essential nutrient that plays a crucial role in energy metabolism and the proper functioning of the nervous system. It helps the body convert carbohydrates into energy and is vital for the growth, development, and function of cells.

Vitamin B1 (Thiamine) can be retained, separated and analyzed using a Primesep 100 mixed-mode stationary phase column. The analysis employs an isocratic method with a simple mobile phase comprising water, acetonitrile (MeCN), and sulfuric acid as a buffer. This method allows for detection using UV 250 nm.

You can find detailed UV spectra of Vitamin B1 (Thiamine) and information about its various lambda maxima by visiting the following link.

ColumnPrimesep 100, 4.6 x 150 mm, 5 µm, 100 A, dual ended
Mobile PhaseMeCN – 10%
BufferH2SO4 -0.4%
Flow Rate1.0 ml/min
DetectionUV 250 nm
Samples1 mg/ml in H2O
Injection volume1 µl
LOD*60 ppb (250 nm)
* LOD was determined for this combination of instrument, method, and analyte, and it can vary from one laboratory to another even when the same general type of analysis is being performed.

Class of Compounds
Vitamins
Analyzing CompoundsVitamin B1 (Thiamine)

Application Column

Primesep 100

Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended

Add to cart
Application Analytes:
Vitamin B1 (Thiamine)

Application Detection:
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

UV-Vis Spectrum of Thiamine

July 23, 2024

Access the UV-Vis Spectrum SIELC Library

UV-Vis Spectrum of Thiamine. Absorption Maxima: 246 nm.

If you are looking for optimized HPLC method to analyze Vitamin B1 (Thiamine) check our HPLC Applications library

For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.

Application Analytes:
Vitamin B1 (Thiamine)
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Method for Separation of Vitamins Group B such as Nicotinic Acid, Pyridoxine, Niacinamide, Pantothenic Acid, Riboflavin on Obelisc N Column

August 22, 2008

Separation of vitamins group B is achieved on Obelisc N column in HILIC mixed-mode. Vitamins of this group are different in polarity and ionic properties. Retention and separation is achieved by optimization of amount of ACN, buffer and buffer pH. Combination of UV and ELSD detection is used to monitor HPLC separation. B vitamins are water-soluble vitamins that play an important role in cell metabolism. Supplements containing all six are generally referred to as a vitamin B complex. Individual B vitamin supplements are referred to by the specific name of each vitamin. This method can be used to analyze individual B vitamins as well as vitamin B complex. Isolation of impurities as well as degradation products is possible by preparative chromatography.

Condition

Column Obelisc N , 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmAC pH 4.5 – 10 mM
Flow Rate 1.0 ml/min
Detection UV, 270 nm, ELSD

 

Description

Class of Compounds
Drug, Vitamin B₆, Hydrophobic, Ionizable
Analyzing Compounds Pyridoxine,  Niacinamide, Pantothenic acid, Riboflavin

Application Column

Obelisc N

SIELC has developed the Obelisc™ columns, which are mixed-mode and utilize Liquid Separation Cell technology (LiSC™). These cost-effective columns are the first of their kind to be commercially available and can replace multiple HPLC columns, including reversed-phase (RP), AQ-type reversed-phase, polar-embedded group RP columns, normal-phase, cation-exchange, anion-exchange, ion-exclusion, and HILIC (Hydrophilic Interaction Liquid Chromatography) columns. By controlling just three orthogonal method parameters - buffer concentration, buffer pH, and organic modifier concentration - users can adjust the column properties with pinpoint precision to separate complex mixtures.

Select options
Application Analytes:

Niacinamide
Pantothenic Acid (Vitamin B5)
Vitamin B1 (Thiamine)
Vitamin B2 (Riboflavin)
Vitamin B3 (Niacin)
Vitamin B6 (Pyridoxine)

Application Detection:
ELSD Detection
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Separation of Vitamin B

April 3, 2004

Primesep C separates B vitamins with baseline resolution by a combination of cation exchange, complex formation, and hydrophobic interactions. Vitamin B1 (thiamine), vitamin B2 (riboflavin), and vitamin B6 (pyridoxine) are separated with a mobile phase of water, acetonitrile (MeCN, ACN) and triethylamine (TEA) phosphate with UV detection at 280 nm.

Condition

Column Primesep C , 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O  -10/90%
Buffer NEt3H3PO4 Ph 3.0 – 20 Mm
Flow Rate 1.0 ml/min
Detection UV, 280 nm

 

Description

Class of Compounds
Drug, Vitamin B₆, Hydrophobic, Ionizable
Analyzing Compounds Pyridoxine, Thiamine, Riboflavin

Application Column

Primesep C

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 options
Application Analytes:


Vitamin B1 (Thiamine)
Vitamin B2 (Riboflavin)
Vitamin B6 (Pyridoxine)
Vitamins

Application Detection:
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.