Sulfanilic Acid, Anhydrous, Reagent, ACS

Sulfanilic Acid, Anhydrous, Reagent, ACS, also known as 4-aminobenzenesulfonic acid, plays a critical role in the pharmaceutical and dye manufacturing industries. This high-quality reagent is essential for producing sulpha drugs and dyes, as well as for the precise quantitative analysis of nitrite and nitrate ions.

Key Features and Specifications

• Chemical CAS Number: 121-57-3
• Chemical Formula: C₆H₇NO₃S
• Chemical Formula Weight: F.W. 173.19

Chemical Specifications

As an ACS-grade quality reagent, Sulfanilic Acid meets rigorous standards, making it suitable for high-purity applications. The exacting specifications include:

• Assay (C₆H₇NO₃S): 98.0 - 102.0%
• Maximum Limits:
  • Residue after Ignition: 0.01%
  • Insoluble in Sodium Carbonate Solution: 0.02%
  • Chloride (Cl): 0.002%
  • Nitrite (NO₂): 0.5 ppm
  • Sulfate (SO₄): 0.01%

Safety and Handling

This reagent has been classified with a Health rating of 1 and a Flammability rating of 1, indicating its manageable risk profile when handled according to safety guidelines. Proper safety measures and personal protective equipment should always be utilized when working with this chemical.

Chemical Category

Sulfanilic Acid is categorized as an Antibiotic and falls under the A.C.S. (American Chemical Society) classification, affirming its suitability for various applications within research and industry.

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