Description

7-Acetamido-3-Hydroxynaphthalene-1-Sulphonic Acid is a specialized naphthalene derivative that serves as a crucial intermediate in the synthesis of high-value organic compounds. Its molecular structure, featuring both acetamido and sulphonic acid groups, makes it a versatile building block for creating dyes, pigments, and functional materials. This product is essential for manufacturers in the fine chemical, pharmaceutical, and specialty dye industries who require reliable, high-purity intermediates for complex synthesis.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes, acid dyes, and other complex colorants, particularly for textiles and inks.
• Pharmaceutical Synthesis: Used as a building block in the research and development of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Chemical Research & Development: Serves as a versatile intermediate in organic synthesis for creating novel compounds with specific functional properties.
• Functional Material Production: Employed in the manufacture of materials where specific sulfonated naphthalene structures are required for properties like solubility or ionic character.
• Analytical Reagent: Can be utilized as a standard or reagent in analytical chemistry and quality control laboratories.

Basic Information

Product Name	7-Acetamido-3-Hydroxynaphthalene-1-Sulphonic Acid
CAS No.	66761-03-3
Molecular Formula	C₁₂H₁₁NO₅S
Molecular Weight	281.28 g/mol
Synonyms	7-Acetamido-3-naphthol-1-sulfonic acid; 1-Naphthalenesulfonic acid, 7-acetamido-3-hydroxy-; 3-Hydroxy-7-acetamidonaphthalene-1-sulfonic acid; 7-Acetylamino-3-hydroxynaphthalene-1-sulfonic acid; N-(7-Hydroxy-4-sulfo-1-naphthyl)acetamide; 7-Acetamido-3-hydroxy-1-naphthalenesulfonic acid; Azoic Coupling Component 18 (historical reference)
EINECS	Contact for details

Quality Control

Our 7-Acetamido-3-Hydroxynaphthalene-1-Sulphonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. Certificates of Analysis (COA) detailing the results of tests such as HPLC assay, related substances, and residual solvents are 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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Sulfated Ash	≤ 0.5%

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