Description

7-(Acetylamino)-4-Hydroxy-2-Naphthalenesulfonic Acid is a high-purity, functionalized naphthalene derivative that serves as a critical intermediate in advanced organic synthesis. Its molecular structure, featuring both sulfonic acid and acetylated amino-hydroxy groups, makes it a versatile building block for creating complex molecules with specific properties. This compound is essential for manufacturers in the pharmaceutical and specialty chemical industries seeking to develop new active ingredients or high-performance dyes and pigments.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting specific biological pathways.
• Dye and Pigment Manufacturing: Used in the production of specialized azo dyes and pigments, contributing to color fastness and specific hue properties.
• Chemical Research & Development: Serves as a versatile scaffold in organic chemistry R&D for creating new functional materials and ligands.
• Analytical Reagent: Can be utilized as a standard or reagent in analytical chemistry for method development and calibration.
• Specialty Polymer Synthesis: Acts as a monomer or functionalizing agent to introduce sulfonic acid groups into polymers, modifying their solubility or ionic characteristics.

Basic Information

Product Name	7-(Acetylamino)-4-Hydroxy-2-Naphthalenesulfonic Acid
CAS No.	6334-97-0
Molecular Formula	C₁₂H₁₁NO₅S
Molecular Weight	281.28 g/mol
Synonyms	7-Acetamido-4-hydroxy-2-naphthalenesulfonic acid; 4-Hydroxy-7-acetamido-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy-; 7-Acetylamino-4-hydroxy-2-naphthalenesulfonic acid; N-Acetyl H acid; H acid derivative; C.I. 16555; Acid Brown 14 intermediate
EINECS	228-698-9

Quality Control

Every batch of 7-(Acetylamino)-4-Hydroxy-2-Naphthalenesulfonic Acid is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards, and our quality protocols include identity confirmation, purity assay, and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and product integrity for your regulatory and production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

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%; Total impurities ≤ 2.0%

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