4-Octylbenzoic acid

CAS Number3575-31-3
Molecular FormulaC15H22O2
Molecular Weight234.33
InChI KeyZQLDNJKHLQOJGE-UHFFFAOYSA-N
LogP6.1
Synonyms
  • 4-Octylbenzoic acid
  • Benzoic acid, 4-octyl-
  • p-Octylbenzoic acid
  • EINECS 222-692-5
  • p-n-Octyl benzoic acid
  • PWH5I1J38K
  • NSC 173066
  • BRN 1954607
  • UNII-PWH5I1J38K
  • NSC-173066
  • DTXSID4063088
  • 4-09-00-01962 (Beilstein Handbook Reference)
  • RefChem:169370
  • DTXCID8039085
  • 222-692-5
  • ZQLDNJKHLQOJGE-UHFFFAOYSA-N
  • 3575-31-3
  • 4-n-Octylbenzoic acid
  • Para-octylbenzoic acid
  • BENZOIC ACID, p-OCTYL-
  • MFCD00042649
  • 4-Octylbenzoicacid
  • p-octyl benzoic acid
  • p-n-octylbenzoic acid
  • Maybridge1_001984
  • 4-octylbenzoic acid (en)
  • 4-Octylbenzoic acid, 99%
  • SCHEMBL503611
  • SCHEMBL9124166
  • CHEMBL3273770
  • HMS547C04
  • MSK2760
  • CCG-41619
  • NSC173066
  • SBB008601
  • AKOS004908305
  • AS-9143
  • CS-W010336
  • SY048290
  • NS00029911
  • O0137
  • ST50827336
  • D91814
  • EN300-1588378
  • F226110
  • SR-01000631680-1
  • Z1695772825
  • 4-Octylbenzoic acid, puriss., liquid crystal, >=99.0% (T)

Applications:

Uv-Vis Spectrum of 4-Octylbenzoic acid

February 26, 2026

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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:
4-Octylbenzoic 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.