2-chloro-4-nitroaniline

2-Chloro-4-nitroaniline (CAS 121-87-9) is an aromatic amine intermediate used primarily in the synthesis of azo dyes and pigments. It functions as a diazonium precursor, enabling the production of colorants across textile, printing, and industrial coating applications.

In textile dyeing, it is diazotized and coupled to produce azo dyes that deliver strong, wash-resistant color on cotton and synthetic fibers. Ink and pigment manufacturers use it to synthesize yellow and orange azo pigments for printing inks and packaging coatings.

The chemical is also utilized in industrial paints and coatings where durability is required. In the leather and paper industries, it contributes to colorant formulations where consistent hue and substrate compatibility are critical production requirements.

Pharmaceutical manufacturers source it as a building block for synthesizing active intermediates. The chloro and nitro substituents provide selective reactivity for further functionalization in complex organic synthesis and medicinal chemistry projects.

2-Chloro-4-nitroaniline is supplied as a crystalline solid or fine powder. Technical grade is the standard commercial form, with purity levels typically ranging from 98% to 99%+ for synthesis-grade applications across various industrial sectors.

Pharmaceutical-grade material meeting tighter impurity specifications is available from select suppliers for regulated manufacturing environments. This ensures compliance with strict quality control protocols required for high-purity chemical processing.