Mefenamic acid

Mefenamic acid structural formula

CAS Number61-68-7
Molecular FormulaC15H15NO2
Molecular Weight241.290
InChI KeyHYYBABOKPJLUIN-UHFFFAOYSA-N
LogP5.12
Synonyms
  • Mefenamic acid
  • 2-(2,3-Dimethylanilino)benzoic acid
  • Benzoic acid, 2-[(2,3-dimethylphenyl)amino]-
  • 61-68-7
  • Benzoic acid, 2-[(2,3-dimethylphenyl)amino]-
  • 2-(2,3-Dimethylanilino)benzoic acid
  • 2',3'-Dimethyl-N-phenylanthranilic acid
  • 2-[(2,3-Dimethylphenyl)amino]benzoic acid
  • acide mefenamique
  • acido mefenamico
  • Anthranilic acid, N-2,3-xylyl-
  • Bafameritin M
  • Baphameritin M
  • Bonabol
  • Lysalgo
  • Mefacit
  • Mefenacid
  • Mefenamsaure
  • Mephenamic acid
  • N-(2,3-Dimethylphenyl) anthranilic acid
  • N-(2,3-Dimethylphenyl)anthranilic acid
  • N-(2,3-Xylyl)-2-aminobenzoic acid
  • N-(2,3-Xylyl)anthranilic acid
  • Namphen
  • NSC 94437
  • Parkemed
  • Ponalar
  • Ponstan
  • Ponstel
  • Ponstil
  • Ponstyl
  • Tanston
  • Vialidon
  • Bafameritin-M
  • Bafhameritin-M
  • BRN 2216243
  • 2-((2,3-Dimethylphenyl)amino)benzoic acid
  • 2-Diphenylaminecarboxylic acid, 2',3'-dimethyl-
  • EINECS 200-513-1
  • Mephenaminic acid
  • Methenamic acid
  • Ponstan forte
  • Tamany Bonsan
  • Mefedolo
  • Mycasaal
  • Ac. mefenamico
  • Acidum mefenamicum
  • Mefenamate
  • UNII-367589PJ2C
  • CI-473
  • CN 35355
  • CN-35355
  • INF 3355
  • INF-3355
  • Mefenaminsaeure
  • N-2,3-xylylanthranilic acid

Applications:

HPLC Method for Analysis of Mefenamic acid on Newcrom BH Column

September 28, 2026

HPLC Method for Analysis of Mefenamic acid on Newcrom BH Column by SIELC Technologies

High Performance Liquid Chromatography (HPLC) Method for Analysis of Mefenamic acid.

Mefenamic Acid is a nonsteroidal anti-inflammatory drug and an anthranilic acid derivative, also known as fenamate, with the formula C15H15NO2. It is used primarily to treat pain and inflammation in rheumatoid arthritis and osteoarthritis, postoperative pain, menstrual pain, menorrhagia, and more. It works similarly to other anthranilic acid derivatives by inhibiting isoforms of the enzyme cyclooxygenase, which prevents the formation of prostaglandins. You can find detailed UV spectra of Mefenamic acid and information about its various lambda maxima by visiting the following link.

Mefenamic acid can be retained and analyzed using the Newcrom BH stationary phase column. The analysis utilizes an isocratic method with a simple mobile phase consisting of water and acetonitrile (MeCN) and ethanol. Detection is performed using UV.

Condition

ColumnNewcrom BH, 3.2 x 150 mm, 5 µm, 100 A, dual ended
Mobile PhaseMeCN/H2O – 45/55%
BufferH2SO4 – 0.1%
Flow Rate0.5 ml/min
DetectionUV 192 nm
LOD*1 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 CompoundsDrug
Analyzing CompoundsMefenamic acid

Application Column

Newcrom BH

Column Diameter: 3.2 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended

Add to cart
Application Analytes:
Mefenamic acid

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 Mefenamic Acid

September 28, 2026

Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze Mefenamic acid check our HPLC Applications library

UV/Vis.: λmax: 192, 220 nm, 280 nm, 352 nm

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. This compound was diluted in a mixture of water and acetonitrile. The method was done with a mixture of water and acetonitrile.

 

 

 

 

Application Analytes:
Mefenamic acid
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 Mefenamic Acid on Chromni Column

September 28, 2026

HPLC Method for Analysis of Mefenamic acid on Chromni Column by SIELC Technologies

High Performance Liquid Chromatography (HPLC) Method for Analysis of Mefenamic acid.

Mefenamic Acid is a nonsteroidal anti-inflammatory drug and an anthranilic acid derivative, also known as fenamate, with the formula C15H15NO2. It is used primarily to treat pain and inflammation in rheumatoid arthritis and osteoarthritis, postoperative pain, menstrual pain, menorrhagia, and more. It works similarlyto other anthranilic acid derivatives by inhibiting isoforms of the enzyme cyclooxygenase, which prevents the formation of prostaglandins.

Mefenamic acid 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 and acetonitrile (MeCN). Detection is performed using UV.

Condition

ColumnChromni, 4.6 x 150 mm, 3 µm, 100 A, surface coated
Mobile PhaseMeCN/H2O
BufferAmAc pH 7.0 – 10 mM
Flow Rate1.0 ml/min
DetectionUV 290 nm
LOD*16.6 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 CompoundsDrug
Analyzing CompoundsMefenamic acid

Application Column

Chromni

Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 3 µm
Pore Size: 100 A
Column options: surface coated

Add to cart
Application Analytes:
Mefenamic acid

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.

Separation of Mefenamic acid on Newcrom R1 HPLC column

February 16, 2018
Separation of Mefenamic acid on Newcrom C18 HPLC column

Mefenamic acid 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
Application Analytes:
Mefenamic acid
The result was obtained by a proprietary SIELC algorithm. It may deviate from the actual experimental data. The experimental data are available upon request. Contact us before ordering the column as there may be a more suitable column alternative by either e-mail: support@sielc.com or by phone: 847-229-2629.