Description

4-Amino-3-Hydroxy-7-Nitronaphthalene-1-Sulfonic Acid is a specialized naphthalene derivative that serves as a high-value intermediate in the synthesis of complex organic molecules. Its unique structure, featuring amino, hydroxy, nitro, and sulfonic acid functional groups, makes it a versatile building block for creating compounds with specific optical and chemical properties. This product is essential for manufacturers and R&D laboratories in the dye, pigment, and pharmaceutical sectors seeking to develop advanced materials.

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 diagnostic agents.
• Chemical Research: Employed in academic and industrial R&D for studying sulfonated naphthalene chemistry and creating novel functional materials.
• Specialty Chemical Production: Serves as an intermediate for manufacturing corrosion inhibitors, optical brighteners, and other performance chemicals.

Basic Information

Product Name	4-Amino-3-Hydroxy-7-Nitronaphthalene-1-Sulfonic Acid
CAS No.	6259-63-8
Molecular Formula	C₁₀H₈N₂O₆S
Molecular Weight	284.25 g/mol
Synonyms	7-Nitro-4-amino-3-hydroxy-1-naphthalenesulfonic acid; 4-Amino-3-hydroxy-7-nitro-1-naphthalenesulfonic acid; 1-Naphthalenesulfonic acid, 4-amino-3-hydroxy-7-nitro-; 3-Hydroxy-4-amino-7-nitronaphthalene-1-sulfonic acid; 7-Nitro-3-hydroxy-4-aminonaphthalene-1-sulfonic acid; 4-Amino-7-nitro-3-hydroxynaphthalene-1-sulfonic acid; 7-Nitro-4-amino-3-hydroxynaphthalene-1-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 4-Amino-3-Hydroxy-7-Nitronaphthalene-1-Sulfonic Acid adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee reliable performance in your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and incompatible materials. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	Yellow to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals	≤ 20 ppm

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