Description

4-Acetamido-2-Aminobenzenesulfonic Acid is a key aromatic sulfonic acid derivative that serves as a versatile intermediate in fine chemical synthesis. Its molecular structure, featuring both acetamido and amino functional groups, makes it a valuable precursor for creating complex molecules with specific properties. This compound is primarily utilized by manufacturers in the pharmaceutical and specialty dye industries for the production of active ingredients and colorants.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with sulfonamide or azo dye-based structures.
• Dye and Pigment Manufacturing: Used as a key intermediate for producing azo dyes and pigments, contributing to color strength and stability.
• Chemical Research & Development: Serves as a starting material or reagent in organic synthesis for developing new compounds in academic and industrial R&D labs.
• Specialty Chemical Production: Employed in the manufacture of other fine chemicals, including photographic chemicals and functional materials.

Basic Information

Product Name	4-Acetamido-2-Aminobenzenesulfonic Acid
CAS No.	88-64-2
Molecular Formula	C8H10N2O4S
Molecular Weight	230.24 g/mol
Synonyms	2-Amino-4-acetamidobenzenesulfonic Acid; 4-Acetamido-2-aminobenzenesulfonic Acid; 4-Acetylamino-2-aminobenzenesulfonic Acid; 2-Amino-4-(acetylamino)benzenesulfonic Acid; N-(5-Amino-2-sulfophenyl)acetamide; 5-Amino-2-sulfonamide; 4-Acetamidoaniline-2-sulfonic Acid; 4'-Amino-2'-sulfacetamide
EINECS	201-849-7

Quality Control

Our 4-Acetamido-2-Aminobenzenesulfonic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against comprehensive specifications, including identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting all test results are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.