Description

8-Aminonaphthalene-1,3,5-Trisulphonic Acid, Sodium Salt is a high-purity, water-soluble aromatic intermediate characterized by its multiple sulfonic acid groups. This compound is valued for its role as a key precursor in the synthesis of complex dyes, pigments, and fluorescent markers. It is primarily required by manufacturers in the specialty chemicals, dye and pigment, and analytical reagent industries for producing high-value colorants and functional materials.

Application

• Dye and Pigment Intermediate: A crucial building block for synthesizing acid dyes, direct dyes, and reactive dyes, particularly for textiles and leather.
• Fluorescent Whitening Agent (FWA) Production: Used in the manufacture of optical brighteners for paper, detergents, and plastics.
• Analytical Chemistry Reagent: Serves as a reagent or a standard in chromatographic analysis and other laboratory procedures.
• Chemical Synthesis: Acts as a versatile intermediate for creating more complex naphthalene-based sulfonic acid derivatives.
• Research & Development: Utilized in academic and industrial R&D for developing new functional dyes and organic compounds.

Basic Information

Product Name	8-Aminonaphthalene-1,3,5-Trisulphonic Acid, Sodium Salt
CAS No.	94349-55-0
Molecular Formula	C10H7NNa3O9S3
Molecular Weight	491.33 g/mol
Synonyms	8-Amino-1,3,5-naphthalenetrisulfonic acid trisodium salt; 1,3,5-Naphthalenetrisulfonic acid, 8-amino-, trisodium salt; H acid trisodium salt (derivative); Aminonaphthalene trisulfonate sodium salt; Trisodium 8-aminonaphthalene-1,3,5-trisulfonate; 8-Amino-1-naphthol-3,5-disulfonic acid trisodium salt (related); Naphthylamine trisulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our 8-Aminonaphthalene-1,3,5-Trisulphonic Acid, Sodium Salt is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical characteristics 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 place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept sealed to prevent moisture absorption, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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