4-Carboxybenzaldehyde

CAS Number 619-66-9
Molecular Formula C8H6O3
Molecular Weight 150.133 g/mol
InChI Key GOUHYARYYWKXHS-UHFFFAOYSA-N
LogP 1.76
Synonyms
  • 4-Carboxybenzaldehyde
  • 4-Formylbenzoic acid
  • Benzoic acid, 4-formyl-
  • 619-66-9
  • Benzoic acid, 4-formyl-
  • 4-10-00-02752
  • 4-Carboxylbenzaldehyde
  • 4-Formylbenzoesaure
  • 4-formylbenzoic acid
  • Acide 4-formylbenzoique
  • acido 4-formilbenzoico
  • BENZALDEHYDE, 4-CARBOXY-
  • NSC 15797
  • p-Carboxybenzaldehyde
  • p-Formylbenzoic acid
  • Terephthalaldehydic acid
  • Terephthaldehydic acid
  • BRN 0471734
  • EINECS 210-607-4
  • UNII-UES4QRK36E

Applications:


Separation of Phthalic Acids and Related Impurities
 

Phthalic acid, phthalic acid isomers, and related products present in the production of phthalic acid were separated on the Primesep D column, based on reversed-phase and in-exchange mechanisms. Neutral, hydrophobic compounds of the phthalic acid production are retained by a reversed-phase mechanism, and phthalic acid and other acidic compounds are retained by a combination of reversed-phase and anion-exchange mechanisms. Resolution and selectivity of this separation can be modified by varying the amount of acetonitrile, buffer concentrations, and buffer pH. This method can be used for monitoring the production cycle of phthalic acid and related impurities.

 

Condition

Column Primesep D, 4.6x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 10-50%, 15 min
Buffer H2SO4 - 0.1%
Flow Rate 1.0 ml/min
Detection UV, 210 nm
 

Description

Class of Compounds Acid, Hydrophilic, Ionizable
Analyzing Compounds Terephthalaldehyde, Phthalic acid, 4-Carboxybenzaldehyde, Benzoic acid, Terephthalic acid, p –Tolualdehyde, p-Toluic acid
 

Application Analytes:

4-Carboxybenzaldehyde
Benzoic Acid
Phthalic Acid
Terephthalaldehyde
Terephthalic Acid
p-Tolualdehyde
p-Toluic Acid