Description

3-(Acetylamino)-5-Amino-4-Hydroxybenzenesulfonic Acid is a key aromatic sulfonic acid derivative that serves as a critical intermediate in the synthesis of complex organic molecules. Its value lies in its multifunctional structure, providing reactive sites for acylation, amination, and sulfonation, which enables precise chemical modifications. This compound is essential for manufacturers in the dye, pigment, and pharmaceutical industries who require high-purity intermediates for producing specialized colorants and active pharmaceutical ingredients (APIs).

Application

• Dye and Pigment Intermediate: A vital building block for synthesizing azo dyes, acid dyes, and other complex colorants, particularly for textiles and inks.
• Pharmaceutical Synthesis: Used as a key intermediate in the production of certain APIs and specialty fine chemicals requiring a sulfonated aromatic backbone.
• Chemical Research & Development: Employed in organic synthesis for creating novel compounds with specific functional group arrangements.
• Photographic Chemicals: Can be utilized in the synthesis of certain photographic developers and sensitizers.
• Corrosion Inhibitor Precursor: Serves as a starting material for formulating specialized corrosion inhibitors in industrial applications.
• Liquid Crystal & Electronic Material Synthesis: Acts as an intermediate for creating advanced materials used in displays and electronics.

Basic Information

Item	Detail
Product Name	3-(Acetylamino)-5-Amino-4-Hydroxybenzenesulfonic Acid
CAS No.	40306-75-0
Molecular Formula	C8H10N2O5S
Molecular Weight	246.24 g/mol
Synonyms	5-Amino-4-hydroxy-3-acetamidobenzenesulfonic Acid; 3-Acetamido-5-amino-4-hydroxybenzenesulfonic Acid; 4-Hydroxy-3-acetylamino-5-aminobenzenesulfonic Acid; 3-Acetylamino-5-amino-4-hydroxybenzenesulfonic Acid; 5-Amino-4-hydroxy-m-acetotoluidinesulfonic Acid; Azoic Coupling Component; Sulfanilic Acid Derivative
EINECS	Contact for details

Quality Control

Our 3-(Acetylamino)-5-Amino-4-Hydroxybenzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and quality assurance.

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). Keep away from incompatible materials such as strong acids and organic solvents. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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