Description

2-Acetamido-8-Naphthol-6-Sulfonic Acid, commonly known as n-Acetyl Gamma Acid, is a key sulfonated naphthalene derivative and a vital intermediate in the synthesis of azo dyes and pigments. Its value lies in its ability to impart bright, wash-fast shades, particularly yellows and oranges, to textiles and other materials. This compound is essential for manufacturers in the dye and pigment industry, as well as for research institutions developing new colorants and specialty chemicals.

Application

• Primary intermediate for the synthesis of acid dyes and direct dyes used on wool, silk, and nylon.
• Key building block in the production of high-performance azo pigments for inks, plastics, and coatings.
• Used in the manufacture of reactive dyes for cellulose fibers like cotton.
• Intermediate for food colorants (where specific purity grades are met).
• Starting material in pharmaceutical synthesis for certain sulfonamide-based compounds.
• Used in research and development of novel chromophores and specialty chemicals.
• Potential use in the synthesis of optical brightening agents.

Basic Information

Product Name	2-Acetamido-8-Naphthol-6-Sulfonic Acid (n-Acetyl Gamma Acid)
CAS No.	6361-41-7
Molecular Formula	C₁₂H₁₁NO₅S
Molecular Weight	281.28 g/mol
Synonyms	N-Acetyl Gamma Acid; 6-Acetamido-4-hydroxy-2-naphthalenesulfonic Acid; 2-Acetylamino-8-hydroxy-6-naphthalenesulfonic Acid; 8-Hydroxy-6-acetamido-2-naphthalenesulfonic Acid; Acetyl J Acid; Acetyl Gamma Acid; 6-Acetylamino-4-hydroxynaphthalene-2-sulfonic Acid; AGS
EINECS	228-878-9

Quality Control

Our 2-Acetamido-8-Naphthol-6-Sulfonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistency and 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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality 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
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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