Description

8-Acetamido-5-Aminonaphthalene-2-Sulfonic Acid is a key naphthalene-based intermediate with significant utility in advanced organic synthesis. Its bifunctional structure, featuring both acetamido and amino groups on a sulfonated naphthalene backbone, makes it a versatile building block for creating complex molecules. This compound is primarily sought after by manufacturers in the dye and pigment industry, as well as by research institutions developing specialized pharmaceuticals and agrochemicals.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of azo dyes, acid dyes, and reactive dyes, imparting color fastness and specific hue characteristics.
• Pharmaceutical Synthesis: Serves as a building block in the research and development of naphthalene-sulfonamide based active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the production of certain herbicides and fungicides where the naphthalene sulfonic acid moiety is required for activity.
• Chemical Research: Employed in academic and industrial R&D for creating novel organic compounds, ligands, and functional materials.
• Fluorescent Whitening Agent (FWA) Production: Acts as an intermediate in the manufacture of certain optical brighteners used in paper and detergent industries.

Basic Information

Product Name	8-Acetamido-5-Aminonaphthalene-2-Sulfonic Acid
CAS No.	85-76-7
Molecular Formula	C₁₂H₁₂N₂O₄S
Molecular Weight	280.30 g/mol
Synonyms	5-Amino-8-acetamidonaphthalene-2-sulfonic acid; 1-Acetamido-4-amino-6-naphthalenesulfonic acid; 8-Acetylamino-5-aminonaphthalene-2-sulfonic acid; 6-Acetamido-3-aminonaphthalene-2-sulfonic acid; 5-Amino-8-acetamido-2-naphthalenesulfonic acid; N-(5-Amino-2-sulfo-1-naphthyl)acetamide; 8-Acetamido-5-aminonaphthalene-2-sulphonic acid; 1,6-Cleve's acid-8-acetamide
EINECS	201-632-5

Quality Control

Our 8-Acetamido-5-Aminonaphthalene-2-Sulfonic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 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.