CAS 101-57-5

Diphenylamine-4-sulfonic acid

Description:

Diphenylamine-4-sulfonic acid, with the CAS number 101-57-5, is an organic compound characterized by its sulfonic acid functional group attached to a diphenylamine structure. This compound typically appears as a white to pale yellow crystalline solid and is soluble in water, making it useful in various applications. It is known for its role as a pH indicator and as a reagent in analytical chemistry, particularly in the detection of certain metal ions. The presence of the sulfonic acid group enhances its solubility and reactivity, allowing it to participate in various chemical reactions. Diphenylamine-4-sulfonic acid is also utilized in the synthesis of dyes and pigments, as well as in the formulation of certain pharmaceuticals. Its stability under normal conditions and ability to form salts with bases further contribute to its versatility in chemical applications. Safety precautions should be observed when handling this compound, as it may pose health risks if ingested or inhaled.

Formula: C₁₂H₁₁NO₃S

InChI: InChI=1S/C12H11NO3S/c14-17(15,16)12-8-6-11(7-9-12)13-10-4-2-1-3-5-10/h1-9,13H,(H,14,15,16)

InChI key: InChIKey=HYKDWGUFDOYDGV-UHFFFAOYSA-N

SMILES: N(C1=CC=C(S(=O)(=O)O)C=C1)C2=CC=CC=C2

Synonyms:

• 4-(Phenylamino)Benzenesulfonic Acid
• 4-Anilinobenzenesulfonic acid
• 4-Sulfodiphenylamine
• Benzenesulfonic acid, 4-(phenylamino)-
• Benzenesulfonic acid, p-anilino-
• Diphenylamine-4-sulfonic acid
• Diphenylamine-p-sulfonic acid
• Diphenylaminosulfonic acid
• N-Phenyl-p-aminobenzenesulfonic acid
• NSC 163911
• Nsc 73722
• Sulfanilic acid, N-phenyl-
• Sulfanilic acid, N-phenyl- (8CI)
• Sulfodiphenylamine
• p-Anilinobenzenesulfonic acid
• p-Anilinobenzenesulphonic acid
• p-Sulfodiphenylamine