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Catalog Number:
00277
CAS Number:
121-57-3
Sulfanillic acid
Grade:
Pure Grade
Purity:
≥ 99% (Assay)
Synonym(s):
4-Aminobenzenesulfonic acid
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$25.20 /100G
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Product Information

Sulfanillic acid is a versatile compound widely recognized for its applications in various industries, particularly in pharmaceuticals and analytical chemistry. This aromatic sulfonic acid, also known as 4-aminobenzenesulfonic acid, serves as a key intermediate in the synthesis of dyes, pigments, and pharmaceuticals. Its unique sulfonic acid group enhances its solubility in water, making it an excellent choice for formulations requiring high solubility and stability. Researchers utilize sulfanillic acid in the development of antibacterial agents and as a reagent in colorimetric assays, particularly in the determination of nitrite levels in water and food samples.

Moreover, sulfanillic acid's role in the production of sulfa drugs underscores its importance in the medical field, providing effective treatment options for bacterial infections. Its compatibility with various chemical reactions and its ability to form stable complexes with metals further expand its utility in catalysis and material science. With its proven track record and diverse applications, sulfanillic acid remains a valuable compound for researchers and industry professionals alike.

Synonyms
4-Aminobenzenesulfonic acid
CAS Number
121-57-3
Purity
≥ 99% (Assay)
Grade
Pure Grade
Molecular Formula
C6H7NO3S
Molecular Weight
173.19
MDL Number
MFCD00007886
PubChem ID
8479
Melting Point
280 °C (Lit.)
Appearance
White crystalline powder
Conditions
Store at RT
General Information
Synonyms
4-Aminobenzenesulfonic acid
CAS Number
121-57-3
Purity
≥ 99% (Assay)
Grade
Pure Grade
Molecular Formula
C6H7NO3S
Molecular Weight
173.19
MDL Number
MFCD00007886
PubChem ID
8479
Melting Point
280 °C (Lit.)
Appearance
White crystalline powder
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Sulfanillic acid is widely utilized in research focused on:

  • Pharmaceutical Development: It serves as a key intermediate in the synthesis of various drugs, particularly sulfa drugs, which are essential in treating bacterial infections.
  • Analytical Chemistry: This compound is used in colorimetric assays to detect and quantify nitrites and nitrates in environmental samples, providing crucial data for water quality assessments.
  • Dyes and Pigments: Sulfanillic acid is employed in the production of azo dyes, which are widely used in textiles and food industries, offering vibrant colors and stability.
  • Biochemistry: It acts as a reagent in biochemical assays, facilitating enzyme activity studies and metabolic pathway research, thus aiding in the understanding of cellular processes.
  • Water Treatment: The compound is utilized in the formulation of certain water treatment chemicals, helping to remove contaminants and improve water quality for industrial applications.

Citations