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Exploring the Chemistry and important Uses of 2-Nitroaniline

Chemistry enthusiasts and professionals alike often find themselves intrigued by the wide array of chemical compounds and their applications. One such compound that has made its mark in various industries is 2-Nitroaniline, with its CAS number 88-74-4. In this blog post, we will delve into the world of 2-Nitroaniline, exploring its chemical properties, applications, and importance in different fields.

2-Nitroaniline 88-74-4 chemic struct
2-Nitroaniline 88-74-4 chemic struct

What is 2-Nitroaniline?

2-Nitroaniline, chemically known as 2-nitrobenzenamine, is an organic compound. It consists of a benzene ring with two important functional groups attached to it: a nitro group (-NO2) and an amino group (-NH2). This unique combination of functional groups imparts several fascinating properties and applications to this compound.

Chemistry enthusiasts and professionals alike often find themselves delving into the fascinating world of organic compounds. Today, we’re going to explore a compound called 2-Nitroaniline. This chemical may not be as well-known as some others, but its unique properties and various applications make it a subject worth exploring.

What is 2-Nitroaniline?

2-Nitroaniline, also known as o-nitroaniline, is an organic compound with the chemical formula C6H6N2O2. It belongs to a class of chemicals known as nitroanilines, which are aromatic compounds that contain both a nitro group (-NO2) and an amino group (-NH2) attached to a benzene ring. This particular compound has a nitro group in the ortho (2-) position of the benzene ring, hence the name 2-Nitroaniline.

Chemical Structure:

The chemical structure of 2-Nitroaniline can be represented as follows:


As you can see, the benzene ring is the central feature, with the nitro group and amino group attached to it. This arrangement gives 2-Nitroaniline its distinct chemical properties.

Synthesis of 2-Nitroaniline:

2-Nitroaniline can be synthesized through various chemical reactions, including nitration and reduction processes. One common method involves the nitration of aniline, where nitric acid is used to introduce the nitro group into the molecule. After nitration, reduction with a reducing agent such as iron or tin results in the formation of 2-Nitroaniline.

Chemical Properties:

2-Nitroaniline exhibits interesting chemical properties due to the presence of both the nitro and amino groups on its benzene ring. It is a yellow crystalline solid with a slightly sweet odor. Some of its key properties include:

  1. Solubility: 2-Nitroaniline is sparingly soluble in cold water but more soluble in hot water, ethanol, and other organic solvents.
  2. Reactivity: The presence of the nitro group makes 2-Nitroaniline susceptible to various chemical reactions, such as reduction, diazotization, and coupling reactions, which are important in organic synthesis.


2-Nitroaniline finds applications in several industries and fields:

  1. Dye Industry: It is used as an intermediate in the synthesis of various dyes, especially azo dyes. Its ability to undergo diazotization and coupling reactions makes it valuable in producing vibrant and colorful dyes for textiles and other products.
  2. Pharmaceutical Industry: 2-Nitroaniline is utilized in the production of certain pharmaceuticals and agrochemicals. It serves as a building block in the synthesis of specific active ingredients.
  3. Analytical Chemistry: This compound is employed as a reagent in analytical chemistry, particularly in spectrophotometric analysis to determine various substances like phenols and amines.


2-Nitroaniline may not be a household name, but it plays a crucial role in various industries due to its unique chemical properties and versatility in organic synthesis. Whether it’s contributing to the vibrant colors of textiles or aiding in the development of pharmaceuticals, 2-Nitroaniline proves that even lesser-known compounds have significant applications in the world of chemistry. Its exploration showcases the diverse and fascinating realm of organic chemistry, where each compound has its own story to tell and role to play.

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