Sulfanilic acid, with the CAS number 121-57-3, is an aromatic sulfonic acid characterized by its sulfonamide functional group attached to an aniline structure. It appears as a white to light yellow crystalline powder and is soluble in water, making it useful in various applications. The compound has a molecular formula of C6H7N1O3S and features a sulfonic acid group (-SO3H) that imparts acidic properties. Sulfanilic acid is primarily utilized in the synthesis of azo dyes, as it can react with diazonium salts to form vibrant colorants. Additionally, it serves as a reagent in analytical chemistry, particularly in the detection of nitrites in water and food samples. The compound exhibits moderate toxicity, and safety precautions should be taken when handling it. Its stability under normal conditions makes it a valuable intermediate in organic synthesis and industrial processes. Overall, sulfanilic acid is an important compound in both chemical research and industrial applications.

Sulfanilic acid

121-57-3: 1-Aminobenzene-4-sulfonic acid, 4-Aminobenzene Sulfonic Acid, 4-Aminobenzenesulfonate, 4-Aminobenzenesulfonic acid, 4-Aminobenzenesulphonic acid, 4-Aminobenzolsulfonsaeure, 4-Aminophenylsulfonic acid, 4-Anilinesulfonic acid, 4-Sulfoaniline, Acide sulfanilique, Acido Sulfanilico, Aniline-4-sulfonic acid, Aniline-p-sulfonic acid, Benzenesulfonic acid, 4-amino-, Nsc 7170, Sulfanilsaure, Sulphanilic acid, Sulphanillic Acid, p-Aminobenesulfonic acid, p-Aminobenzenesulfonic acid, p-Aminophenylsulfonic acid, p-Sulfoaniline, Sulfanilic acid

CAS 121-57-3: Sulfanilic acid

4-Aminobenzenesulfonic acid

Ref: 10-F079219

Sulfanilic Acid (4-Aminobenzenesulfonic acid)

Ref: 45-1633506