At NINGBO INNO PHARMCHEM CO.,LTD., we believe that a deep understanding of chemical properties is fundamental to unlocking the potential of any compound. Aniline-2-Sulfonic Acid (CAS 88-21-1), commonly known as Orthanilic Acid, is a fascinating molecule whose utility in industries like dye manufacturing and pharmaceuticals stems directly from its unique chemical characteristics.

One of the most defining features of Aniline-2-Sulfonic Acid is the presence of both an amino (-NH2) group and a sulfonic acid (-SO3H) group attached to a benzene ring. The sulfonic acid group imparts significant acidity to the molecule. This acidic nature means it can readily donate a proton in aqueous solutions, allowing it to react with bases to form salts. This property is key in many industrial processes where pH control or salt formation is necessary.

In terms of reactivity, the benzene ring in Aniline-2-Sulfonic Acid is influenced by both substituents. The amino group is an activating and ortho, para-directing group, while the sulfonic acid group is a deactivating and meta-directing group. The interplay between these groups dictates how the molecule behaves in electrophilic aromatic substitution reactions, making it a versatile substrate for further chemical modification. This reactivity is precisely why it's a sought-after aniline-2-sulfonic acid intermediate in complex organic syntheses.

Solubility is another important aspect. Aniline-2-Sulfonic Acid exhibits moderate solubility in water, a property attributed to the polar sulfonic acid group. This water solubility is advantageous for many aqueous-based reactions and formulations. However, its solubility in non-polar organic solvents is generally limited, which can be leveraged during purification processes. Understanding these solubility profiles is crucial when determining suitable reaction media and purification techniques for orthanilic acid pharmaceutical synthesis.

The precise understanding of these aniline-2-sulfonic acid chemical properties allows chemists and manufacturers to effectively utilize this compound. Whether for creating vibrant dyes or synthesizing complex drug molecules, grasping its acidic nature, dual reactivity, and solubility characteristics is key to successful application. NINGBO INNO PHARMCHEM CO.,LTD. is committed to supplying Aniline-2-Sulfonic Acid of high purity, enabling our clients to achieve optimal results in their chemical endeavors.