4-Nitroaniline

4-Nitroaniline structural formula

CAS Number100-01-6
Molecular FormulaC6H6N2O2
Molecular Weight138.127
InChI KeyTYMLOMAKGOJONV-UHFFFAOYSA-N
LogP1.39
Synonyms
  • 4-Nitroaniline
  • Benzenamine, 4-nitro-
  • 100-01-6
  • Benzenamine, 4-nitro-
  • 1-Amino-4-nitrobenzene
  • 4-Amino-1-nitrobenzene
  • 4-Aminonitrobenzene
  • 4-Nitro-1-aminobenzene
  • 4-Nitroanaline
  • 4-Nitroanilin
  • 4-nitroanilina
  • 4-Nitrobenzenamine
  • 4-Nitrophenylamine
  • ANILINE, P-NITRO-
  • Azoamine Red Zh
  • C.I. Azoic Diazo Component 37
  • C.I. Developer 17
  • Developer P
  • Devol Red GG
  • Fast Red 2G Base
  • Fast Red Base 2J
  • Fast Red Base GG
  • Fast Red GG Base
  • Fast Red MP Base
  • Fast Red P Base
  • Naphtoelan Red GG Base
  • Nitrazol CF extra
  • NITROANILINE
  • NSC 9797
  • p-Aminonitrobenzene
  • p-Nitraniline
  • p-Nitroaniline
  • p-Nitrophenylamine
  • Red 2G Base
  • See Nitroanilines
  • Shinnippon Fast Red GG Base
  • Aniline, 4-nitro-
  • Azofix Red GG Salt
  • Azoic Diazo Component 37
  • CI Azoic Diazo Component 37
  • CI Developer 17
  • Diazo Fast Red GG
  • EINECS 202-810-1
  • Fast Red P Salt
  • Fast Red 2G Salt
  • Fast Red GG Salt
  • Fast Red Salt 2J
  • Fast Red Salt GG
  • NCI-C60786
  • para-Aminonitrobenzene
  • para-Nitroaniline
  • PNA (VAN)
  • RCRA waste number P077
  • p-Nitroanilina
  • UNII-1MRQ0QZG7G
  • 4-nitraniline

Applications:

Uv-Vis Spectrum of 4-Nitroaniline

February 25, 2026

Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze 4-Nitroaniline 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:
4-Nitroaniline
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.

Separation of 4-Nitroaniline on Newcrom R1 HPLC column

May 16, 2018
Separation of 4-Nitroaniline on Newcrom R1 HPLC column

4-Nitroaniline can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for fast UPLC applications. This liquid chromatography method is scalable and can be used for isolation impurities in preparative separation. It also suitable for pharmacokinetics.

Application Column

Newcrom R1

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

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Application Analytes:
4-Nitroaniline
The result was obtained by a proprietary SIELC algorithm. It may deviate from the actual experimental data. The experimental data are available upon request. Contact us before ordering the column as there may be a more suitable column alternative by either e-mail: support@sielc.com or by phone: 847-229-2629.