Tetrabutylphosphonium bromide

CAS Number3115-68-2
Molecular FormulaC16H36BrP
Molecular Weight339.33
InChI KeyRKHXQBLJXBGEKF-UHFFFAOYSA-M
Synonyms
  • Tetrabutylphosphonium bromide
  • 3115-68-2
  • Tetra-N-butylphosphonium bromide
  • Phosphonium, tetrabutyl-, bromide
  • DTXSID6047945
  • NSC-41942
  • 2953275L2K
  • DTXCID6027921
  • Bu4PBr
  • DTXSID0045042
  • TBP Br
  • RefChem:188422
  • DTXCID8025042
  • 221-487-8
  • Tetrabutylphosphonium
  • tetrabutylphosphanium;bromide
  • MFCD00011853
  • tetrabutylphosphanium bromide
  • PX 4B
  • EINECS 221-487-8
  • NSC 41942
  • Tetrabutylphosphoniumbromide
  • TETRA BUTYL PHOSPHONIUM BROMIDE
  • C16H36BrP
  • tetrabutylphosphanium,bromide
  • UNII-2953275L2K
  • tetrabutylphosphonium;bromide
  • tetrabutyl-phosphonium bromide
  • SCHEMBL126636
  • tetra-n-butylphosphoniumbromide
  • CHEMBL3185844
  • tetra-n--butylphosphonium bromide
  • tetra-n-butyl phosphonium bromide
  • Tetrabutylphosphonium bromide, 98%
  • NSC41942
  • Tox21_200701
  • WLN: 4P4&4&4 &E
  • AKOS015833022
  • CS-W009414
  • FT34275
  • NCGC00258255-01
  • AS-12267
  • CAS-3115-68-2
  • Phosphonium, tetrabutyl-, bromide (1:1)
  • DB-047979
  • NS00082114
  • T1124
  • D97390
  • A816520
  • F235649
  • Q27254381

Applications:

Uv-Vis Spectrum of Tetrabutylphosphonium Bromide

March 18, 2026

Access the UV-Vis Spectrum SIELC Library

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