Norephedrine

Norephedrine structural formula

CAS Number14838-15-4
Molecular FormulaC9H13NO
Molecular Weight151.209
InChI KeyDLNKOYKMWOXYQA-VXNVDRBHSA-N
LogP0.67
Synonyms
  • Phenylpropanolamine
  • (1S,2R)-2-Amino-1-phenylpropan-1-ol
  • benzenemethanol, alpha-[(1R)-1-aminoethyl]-, (alphaS)-
  • 14838-15-4
  • rel-(alphaS)-alpha-[(1R)-1-Aminoethyl]benzenemethanol
  • 4-13-00-01875
  • Benzenemethanol, alpha-[(1R)-1-aminoethyl]-, (alphaS)-rel-
  • (+/-)-Norephedrin
  • (+/-)-Norephedrine
  • (+/-)-Phenylpropanolamine
  • (R*,S*)-(+/-)-alpha-(1-aminoethyl)benzyl alcohol
  • (R*,S*)-(+/-)-alpha-(1-Aminoethyl)benzylalkohol
  • alcohol (R*,S*)-(+/-)-alpha-(1-aminoetil)bencilico
  • Alcool (R*,S*)-(+/-)-alpha-(1-aminoethyl)benzylique
  • Benzenemethanol, alpha-(1-aminoethyl)-, (R*,S*)-
  • Benzenemethanol, alpha-(1-aminoethyl)-, (R*,S*)-(+/-)-
  • dl-Norephedrine
  • dl-Phenylpropanolamine
  • erythro-2-Amino-1-phenyl-1-propanol
  • Norephedrine
  • Norephedrine, (+/-)-
  • NSC 9920
  • Propadrine
  • Super Odrinex
  • dl-alpha-(1-Aminoethyl)benzyl alcohol
  • dl-2-Amino-1-hydroxy-1-phenylpropane
  • Benzyl alcohol, alpha-(1-aminoethyl)-
  • BRN 3196918
  • EINECS 211-850-9
  • EINECS 238-900-2
  • dl-alpha-Hydroxy-beta-aminopropylbenzene
  • dl-1-Phenyl-2-aminopropanol-1
  • Rhindecon
  • Phenylpropanolamina
  • Phenylpropanolaminum
  • 134-60-1
  • 36393-57-4
  • 700-65-2

Applications:

HPLC Separation of Pseudoephedrine, Norephedrine, Phenylephrine, and Norphenylephrine Using Hydrogen Bonding Mode

June 15, 2012

 

 

Application Notes: Neurotransmitters are polar basic compounds. Several HPLC techniques are used to analyze these hydrophilic molecules. The most common techniques are reversed-phase with ion-pairing reagents chromatography, ion chromatography, HILIC, and mixed-mode chromatography. SIELC developed a new approach of analysis, which is based on hydrogen bond interactions. Hydrogen-bonding offers unique and alternative selectivity to traditional approaches like reversed-phase, HILIC, ion-exchange, and mixed-mode chromatography. Our methods are fully compatible with ELSD, LC/MS and prep chromatography.

Application Columns: SHARC 1, 3.2×100 mm, 5 um, 100A. To learn more about SHARC 1 columns click here. To order this column click here. To see more chromatographic separations check our web site.

Application compounds: Pseudoephedrine, norephedrine, phenylephrine and norphenylephrine

Detection technique: UV, LC/MS

 

 

Condition

Column Sharc 1, 3.2×100 mm, 5 µm, 100A
Mobile Phase MeCN/MeOH
Buffer AmFm, Formic acid
Flow Rate 1.0 ml/min
Detection UV, 270 nm

 

Description

Class of Compounds
Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements
Analyzing Compounds Pseudoephedrine, Norephedrine, Phenylephrine, Norphenylephrine

 

Application Column

SHARC 1

The SHARC™ family of innovative columns represents the first commercially available columns primarily utilizing separation based on hydrogen bonding. SHARC stands for Specific Hydrogen-bond Adsorption Resolution Column. Hydrogen bonding involves an interaction or attraction between a bound hydrogen atom and molecules containing electronegative atoms, such as oxygen, nitrogen, and fluorine.

Select options
Application Analytes:
Norephedrine
Norphenylephrine
Phenylephrine
Pseudoephedrine (PSE)
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 Drugs

November 21, 2010


Mixed-mode chromatography allows to separate various hydrophobic and hydrophilic drugs in one HPLC method. Presence of at least two mechanism of retention allows adjust selectivity of separation by changing three parameters: amount of acetonitrile, buffer concentration and buffer pH. Seven common drugs are separated on a Primesep C trimodal HPLC column in gradient method. Method provides alternative selectivity to traditional reversed-phase chromatography. Operational range in which basic compounds are retained the most is from pH 3 to 5. At higher pH, longer retention can be achieved. Mixed-mode chromatography provides longer retention and better peak shapes for basic and acidic analytes. Method can be used in analysis of drugs and pharmaceuticals.

Condition

Column Primesep C, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN
Buffer Formic Acid
Flow Rate 1.0 ml/min
Detection UV, 250 nm

 

 

Description

Class of Compounds
Drug, Analgetic, Acid, Hydrophilic, Ionizable,
Analyzing Compounds Norphenylephrine, Norephedrine, Pseudoephedrine, Doxylamine, Pyrilamine, Dextromethorphan, Trimipramine

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:
Dextromethorphan
Doxylamine
Norephedrine
Norphenylephrine
Pseudoephedrine (PSE)
Pyrilamine

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.

Comparison of the Separation of Polar Drugs on Obelisc R and Zorbax SB-AQ

March 3, 2010


Common hydrophobic basic and hydrophilic basic drugs are separated by mixed-mode chromatography with greater selectivity and resolution than traditional reversed-phase column. Drugs are retained by combination of reversed-phase and cation-exchange mechanisms. Retention time is controlled by amount of acetonitrile, buffer concentration and buffer pH. Available detection techniques are based on buffer selection and include UV, Evaporative Light-Scattering Detector (ELSD), Corona (CAD), LC/MS, etc. This HPLC method can be adopted as general approach for analysis of drugs and pharmaceuticals.

Application Column

Obelisc R

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:

Dextromethorphan
Doxylamine
Norephedrine
Norphenylephrine
Pseudoephedrine (PSE)
Pyrilamine

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.