Metanilic Acid | 121-47-1

Metanilic Acid (CAS No. 121-47-1), a compound formed by combining two amino (NH2) groups and a sulfonic acid (SO3H), is a versatile substance that ranges in colour from crystal white to off-white powder. In the pharmaceuticals and plastics industry, it serves as a central intermediate and fundamental element for creating complex chemicals. Its distinct properties make it a go-to choice in the chemical industry. Let's delve into what makes this compound so versatile for various chemical applications.

What is Metanilic Acid (CAS No. 121-47-1)?

Metanilic Acid (CAS 121-47-1) is an organic compound with the formula C6H7NO3S. It is a grayish-white crystalline solid, soluble in water, and contains both amino and sulfonic acid functional groups attached to a benzene ring.

It is widely used as an intermediate in dye, pigment, and chemical manufacturing. Metanilic Acid is crucial in synthesizing azo dyes and colorants, where it helps create vibrant, stable, and long-lasting shades for various industrial applications.

Some of its key characteristics are:

• Colour Appearance: White and Off-White
• Form: Available in powder form
• Molecular Weight: 173.19 g/mol.
• Solubility: It is soluble in both water and alcohol. 
• Melting Point: ~300 °C.

Metanilic Acid (CAS No. 121-47-1) - Main Characteristics

Every chemical has different key features and reacts according to its properties. Likewise, metanilic acid also has characteristics that produce desired results for various industries some primary attributes of 3-Aminobenzene Sulfonic Acid.

1. Highly Pure: When it comes to chemistry and chemical reactions, purity is paramount. A more pure chemical ensures the intended result and eliminates the need for repeated experimentation. Metanilic acid is widely recognised for its high purity, a key factor that instils confidence in its quality among various industries.
2. A Quality That Maintains Consistency: Consistent quality means that every time the industrialist gets the same result, and this is possible through pure chemicals and high-quality raw materials. Similarly, metanilic acid possesses the property of maintaining the desired result. Thus, it is widely popular among chemical industries for its consistent quality.
3. Wide Range Of Application: Metanilic acid is beneficial to the dyeing industry, the pharmaceutical sector, and fertiliser manufacturing. Thus, it has versatile applications.
4. A Production Process Ensures Environmental Protection: Now, with the advancement of technology, every chemical has been developed that has a reduced environmental impact. The metanilic acid ensures a production process that protects the environment, which in turn follows sustainable manufacturing of chemicals.

Metanilic Acid(CAS No. 121-47-1) Applications

Metanilic acid is used in many industries because of its special chemical properties and reactivity. Below are some of the main metanilic acid uses commonly seen in different industrial applications:

• To improve the brightness of paper and detergents, metanilic acid is used as an optical brightener.
• Metanilic acid serves as an intermediate in the production of coatings, plastics, and automotive spray paints.
• Metanilic Acid is the precursor for making vibrant orange, red and yellow dyes. It is an ally in diazotization, which aids in creating a chromophoric system. Metanilic Acid, key in dye production, pairs with Laurent's Acid for azo dye synthesis.

What Other Industries Need Metanilic Acid (CAS No. 121-47-1)?

Do you think that this industrial chemical is limited to the pharma and agrochemical industries? Nowadays, in addition to these two, many other sectors require metanilic acid in their production. Let's discuss those industries in detail. 

Dye Manufacturing

Azo dye is the main chemical in the dyeing industry, and metanilic acid is an intermediate compound in producing azo dyes.

Chemical Industry

Chemical synthesis is the primary function of the chemical industry, enabling the production of a wide range of products. Thus, industrial acid, namely metanilic acid, is utilised because it acts as a block build-up and synthesis among the chemicals.

Pharma Industry

A prime role of metanilic acid is synthesis. Therefore, it combines several medicinal chemicals to manufacture drugs that treat fever, pain, and bacterial infections.

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