Benzoin

Benzoin structural formula

CAS Number119-53-9
Molecular FormulaC14H12O2
Molecular Weight212.249
InChI KeyISAOCJYIOMOJEB-UHFFFAOYSA-N
LogP2.13
Synonyms
  • Benzoin
  • 2-Hydroxy-1,2-diphenylethan-1-one
  • Ethanone, 2-hydroxy-1,2-diphenyl-
  • 119-53-9
  • 2-Hydroxy-1,2-diphenylethan-1-one
  • 4-08-00-01279
  • Ethanone, 2-hydroxy-1,2-diphenyl-
  • (.+-.)-2-Hydroxy-1,2-diphenylethanone
  • (.+-.)-2-Hydroxy-2-phenylacetophenone
  • (.+-.)-Benzoin
  • (RS)-Benzoin
  • 1,2-Diphenyl-1-hydroxy-2-ethanone
  • 1,2-Diphenyl-2-hydroxyethanone
  • 1,2-Diphenyl-2-oxoethanol
  • 2-Hydroxy-1,2-diphenyl-1-ethanone
  • 2-Hydroxy-1,2-diphenylethanone
  • 2-Hydroxy-2-phenylacetophenone
  • ACETOPHENONE, 2-HYDROXY-2-PHENYL-
  • BENZOIN, (+/-)
  • benzoina
  • Benzoine
  • Benzoylphenylcarbinol
  • Desyl alcohol
  • dl-Benzoin
  • Nisso Cure MB
  • NSC 8082
  • α-Benzoylbenzenemethanol
  • α-Hydroxybenzyl phenyl ketone
  • α-Hydroxy-α-phenylacetophenone
  • (+-)-Benzoin
  • Bitter almond oil camphor
  • Bitter-almond-oil camphor
  • BRN 0391839
  • EINECS 204-331-3
  • EINECS 209-441-5
  • FEMA No. 2132
  • Ketone, alpha-hydroxybenzyl phenyl
  • NCI-C50011
  • Aerozoin
  • Fenyl-alpha-hydroxybenzylketon
  • Hydroxy-2-phenyl acetophenone
  • PhCH(OH)COPh
  • PhCOCH(OH)Ph
  • Phenyl-alpha-hydroxybenzyl ketone
  • Phenylbenzoyl carbinol
  • alpha-Hydroxy-alpha-phenylacetophenone
  • alpha-Hydroxybenzyl phenyl ketone
  • alpha-hydroxy-alpha-phenylacetophenone
  • 579-44-2

Applications:

HPLC Method for Analysis of Benzoin on Primesep 200 Column

February 20, 2026

HPLC Method for Benzoin on Primesep 200 by SIELC Technologies

High Performance Liquid Chromatography (HPLC) Method for Analysis of Epibatidine

Benzoin is an organic compound with the chemical formula C14H12O2. It is primarily used as a precursor to benzil or in powder coating. You can find detailed UV spectra of Benzoin and information about its various lambda maxima by visiting the following link.

Benzoin can be retained and analyzed using the Primesep 200 stationary phase column. The analysis utilizes an isocratic method with a simple mobile phase consisting of water and acetonitrile (MeCN) with a sulfuric acid buffer. Detection is performed using UV.

ColumnPrimesep 200, 4.6 x 150 mm, 5 µm, 100 A, dual ended
Mobile PhaseMeCN/H2O – 40/60%
BufferH2SO4 – 0.1%
Flow Rate1.0 ml/m
DetectionUV 200 nm
Class of Compounds
 Organic Compound
Analyzing CompoundsBenzoin

Application Column

Primesep 200

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

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Application Analytes:
Benzoin
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 Benzoin

February 20, 2026

Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze Benzoin 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:
Benzoin
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.

Reverse Mode vs Normal Mode: Separation of Aromatic Compounds

August 6, 2005

Primesep 100 separates a mixture of benzyl compounds in both normal- and reversed-phase modes with UV detection. The peak order of benzil, benzoin, bibenzylbenzoate, bibenzyl, deoxybenzoin, and 4-methyldeoxybenzoin are completely reversed with a change of mobile phase. The reversed-phase mobile phase of water, acetonitrile (MeCN, ACN) and trifluoroacetic acid (TFA) and the normal phase mobile phase of hexane and isopropanol both separate this mixture in less than 12 minutes total elution time.

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:
4-Methyldeoxybenzoin
Benzil
Benzoin
Benzylbenzoate
Bibenzyl
Deoxybenzoin
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.