Description

6-Amino-4-Nitro-2-Naphthalenesulfonic Acid Sodium Salt is a high-purity, water-soluble naphthalene derivative essential as a key intermediate in the synthesis of advanced organic pigments and dyes. Its molecular structure provides the chromophore and functional groups necessary for producing vivid, stable colors with excellent fastness properties. This compound is primarily required by manufacturers in the specialty chemicals sector for applications in textile dyes, ink formulations, and advanced material research.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a critical diazo component in the production of high-performance red, orange, and black azo pigments for plastics, inks, and coatings.
• Textile Dye Manufacturing: Used in synthesizing acid dyes and direct dyes for coloring nylon, wool, silk, and paper, offering good wash and light fastness.
• Functional Material Synthesis: Acts as a building block for creating organic semiconductors, charge transport materials, and nonlinear optical (NLO) materials due to its electron-donating and accepting groups.
• Research & Development: Employed in academic and industrial R&D labs for exploring new chromophores, fluorescent markers, and photoactive compounds.
• Liquid Crystal Dye Production: Utilized in the manufacture of dyes for liquid crystal displays (LCDs) where color purity and stability are paramount.
• Analytical Reagent: Can be used as a standard or reagent in analytical chemistry for method development and calibration.

Basic Information

Product Name	6-Amino-4-Nitro-2-Naphthalenesulfonic Acid Sodium Salt
CAS No.	62231-26-9
Molecular Formula	C₁₀H₇N₂NaO₆S
Molecular Weight	306.23 g/mol
Synonyms	6-Amino-4-nitro-2-naphthalenesulfonic acid sodium salt; Sodium 6-amino-4-nitro-2-naphthalenesulfonate; 4-Nitro-6-amino-2-naphthalenesulfonic acid sodium salt; 2-Naphthalenesulfonic acid, 6-amino-4-nitro-, sodium salt (1:1); 6-Amino-4-nitro-naphthalene-2-sulfonic acid sodium salt; Azoic Diazo Component; Dye intermediate 62231-26-9
EINECS	Contact for details

Quality Control

Our 6-Amino-4-Nitro-2-Naphthalenesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye and pigment synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder or crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Solubility (1% in Water)	Clear, yellow to orange solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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