2-Chloro-4-nitroaniline

CAS Number

121-87-9

Molecular Formula

C₆H₅ClN₂O₂

Also known as:

2-Chloro-4-nitroaniline; 2-chloro-4-nitro-anilin; o-chloro-p-nitroaniline; OCPNA

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Product Description

2-Chloro-4-nitroaniline CAS 121-87-9
2-Chloro-4-nitroaniline is an aromatic nitroaniline supplied as a yellow crystalline solid. It is used as an intermediate in dye and pigment production, specialty organic synthesis and analytical R&D. The substance is handled as a powdered solid under standard EHS controls for dust, toxic aromatic amines and nitro compounds.

Applications

  • Dye and pigment intermediate
    Used as a synthetic intermediate in the manufacture of azo dyes, basic dyes and pigment intermediates where chloro-nitroaniline building blocks are required.
  • Specialty organic synthesis
    Employed as a building block in heterocycle formation, reduction/amination sequences and other specialty organic transformations.
  • Analytical reagent and reference standard
    Used as a reference material and standard in analytical method development, QC and impurity profiling for aromatic nitro compounds.
  • Research and development
    Used in R&D laboratories for process development, screening of functionalized aromatic scaffolds and exploratory synthetic chemistry.

Technical Parameters

Parameter Value
Assay ≥ 98.0
Appearance Yellow crystalline powder
Water (Karl Fischer, % w/w) ≤ 0.50
Melting point (°C) 105–108
Residue on ignition (% w/w) ≤ 0.10

Applications

Pigments/Dyes

Quick Information

EINECS 204-502-2
Molecular Weight 172.57 g/mol

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