Description

8-Amino-5-Nitronaphthalene-2-Sulfonic Acid is a key aromatic sulfonic acid derivative, serving as a versatile and critical intermediate in advanced organic synthesis. Its molecular structure, featuring both amino and nitro functional groups on the naphthalene ring, makes it an essential building block for creating complex, high-value compounds. This product is primarily utilized by manufacturers in the dye, pigment, and pharmaceutical industries for the development of specialized colorants and active pharmaceutical ingredients (APIs).

Application

• Dye and Pigment Intermediate: A crucial precursor for synthesizing azo dyes, acid dyes, and other complex organic pigments, particularly for textiles, leather, and inks.
• Pharmaceutical Synthesis: Used as a building block in the research and production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Serves as a valuable reagent in organic chemistry R&D for creating novel compounds with specific optical or electronic properties.
• Functional Material Production: Potential intermediate in the manufacture of specialty polymers, liquid crystals, or other advanced materials requiring sulfonated aromatic structures.

Basic Information

Product Name	8-Amino-5-Nitronaphthalene-2-Sulfonic Acid
CAS No.	6357-78-4
Molecular Formula	C₁₀H₈N₂O₅S
Molecular Weight	268.25 g/mol
Synonyms	5-Nitro-8-aminonaphthalene-2-sulfonic Acid; 8-Amino-5-nitronaphthalene-2-sulphonic Acid; 2-Naphthalenesulfonic acid, 8-amino-5-nitro-; 6-Amino-3-nitronaphthalene-1-sulfonic Acid; 1-Amino-4-nitronaphthalene-6-sulfonic Acid; 8-Amino-5-nitro-2-naphthalenesulfonic acid; ANSA; Contact for details on additional trade names.
EINECS	228-775-8

Quality Control

Our 8-Amino-5-Nitronaphthalene-2-Sulfonic Acid is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided to guarantee compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept sealed to minimize exposure to atmospheric moisture.

Specification

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

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