Naproxen

Naproxen structural formula

CAS Number22204-53-1
Molecular FormulaC14H14O3
Molecular Weight230.264
InChI KeyCMWTZPSULFXXJA-VIFPVBQESA-N
LogP3.18
Synonyms
  • Naproxen
  • (2S)-2-(6-Methoxynaphthalen-2-yl)propanoic acid
  • 2-Naphthaleneacetic acid, 6-methoxy-alpha-methyl-, (alphaS)-
  • 22204-53-1
  • 2-Naphthaleneacetic acid, 6-methoxy-?-methyl-, (?S)-
  • (+)-(S)-Naproxen
  • (+)-2-(6-Methoxy-2-naphthyl)propionic acid
  • (+)-6-Methoxy-?-methyl-2-naphthaleneacetic acid
  • (+)-Naproxen
  • (S)-(+)-2-(6-Methoxy-2-naphthyl)propionic acid
  • (S)-(+)-Naproxen
  • (S)-(+)-Naproxene
  • (S)-2-(6-Methoxy-2-naphthyl)propanoic acid
  • (S)-2-(6-Methoxy-2-naphthyl)propionic acid
  • (S)-2-(6-Methoxynaphthalen-2-yl)propanoic acid
  • (S)-2-(6-Methoxynaphthalen-2-yl)propionic acid
  • (S)-6-Methoxy-?-methyl-2-naphthaleneacetic acid
  • (S)-Naproxen
  • (S)-?-Methyl-6-methoxynaphthalene-2-acetic acid
  • 2-Naphthaleneacetic acid, 6-methoxy-?-methyl-, (+)-
  • 2-Naphthaleneacetic acid, 6-methoxy-?-methyl-, (S)-
  • Apo-Naproxen
  • Aproxen
  • d-2-(6-Methoxy-2-naphthyl)propionic acid
  • Diocodal
  • d-Naproxen
  • Dysmenalgit
  • Equiproxen
  • Floginax
  • Laraflex
  • Naprium
  • Naprius
  • Naprosyn
  • Naprosyne
  • naproxene
  • naproxeno
  • Nycopren
  • Panoxen
  • Proxine
  • Veradol
  • EINECS 244-838-7
  • (+)-(S)-6-Methoxy-alpha-methyl-2-naphthaleneacetic acid
  • (+)-6-Methoxy-alpha-methyl-2-naphthaleneacetic acid
  • 2-Naphthaleneacetic acid, 6-methoxy-alpha-methyl-, (+)-
  • Napren E
  • (S)-6-Methoxy-alpha-methyl-2-naphthaleneacetic acid
  • Flanax Forte
  • Headlon
  • Nalyxan
  • Napratec
  • Naprontag
  • Naprosyn LLE
  • Naprosyn LLE Forte
  • Naproxi 250
  • Naproxi 500
  • Narocin
  • Naxen F
  • Naxopren
  • Prafena
  • Priaxen
  • Pronaxen
  • Proxen LE
  • Proxen LLE
  • Rheumaflex
  • Saritilron
  • Sinartrin
  • Soproxen
  • Sutolin
  • Tohexen
  • Traumox
  • U-Ritis
  • (+)-2-(Methoxy-2-naphthyl)-propionsaeure
  • d-2-(6'-Methoxy-2'-naphthyl)-propionsaeure
  • UNII-57Y76R9ATQ
  • Xenar-CR
  • (+)-2-(Methoxy-2-naphthyl)-propionic acid
  • (+)-2-(Methoxy-2-naphthyl)-propionsaeure
  • (S)-6-Methoxy-alpha-methyl-2-naphthaleneacetic acid
  • 2-(6-Methoxy-2-naphthyl)propionic acid
  • Acusprain
  • Anexopen
  • Apronax
  • Artagen
  • Arthrisil
  • Artrixen
  • Artroxen
  • Atiflan
  • Axer
  • Bipronyl
  • Calosen
  • Clinosyn
  • Congex
  • DL Naproxen
  • DL-Naproxen
  • Danaprox
  • Daprox
  • Duk
  • Dysmenalgit N
  • Ec-Naprosyn
  • Flexipen
  • Fuxen
  • Genoxen
  • Lefaine
  • Leniartil
  • Nafasol
  • Naixan
  • Nalyxan
  • Napflam
  • Napmel
  • Naposin
  • Naproxen Sodium
  • Naproxenum
  • Novonaprox
  • Opipramol

Applications:

HPLC Determination of Naproxen on Primesep 100 Column

July 30, 2020


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Application Notes: Naproxen is a common NSAID used for pain relief and fever reducer. 

 

Condition

Column Primesep 100, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O – 40/60%
Buffer H2SO4 – 0.1%
Flow Rate 1.0 ml/min
Detection UV, 270 nm

 

Description

Class of Compounds
Drug, Hydrophobic, Ionizable
Analyzing Compounds Naproxen

 

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 options
Application Analytes:
Naproxen
Naproxen Sodium
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 Naproxen on Newcrom R1 HPLC column

February 16, 2018
Separation of Naproxen on Newcrom C18 HPLC column

Naproxen 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:
Naproxen
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 by e-mail: support@sielc.com or by phone: 847-229-2629.