Description

Trisodium 7-Aminonaphthalene-1,3,5-Trisulphonate is a high-purity, water-soluble aromatic intermediate characterized by its sulfonated naphthalene backbone and primary amine functionality. This compound is valued for its ability to act as a versatile building block in the synthesis of advanced dyes, optical brighteners, and specialty chemicals. It is essential for manufacturers in the textile, paper, and fine chemical industries seeking to produce high-performance colorants and functional additives.

Application

• Dye and Pigment Intermediate: A key precursor for the synthesis of acid dyes, direct dyes, and reactive dyes, particularly for coloring wool, silk, nylon, and paper.
• Optical Brightening Agent (OBA) Synthesis: Used in the manufacturing of stilbene-based fluorescent whitening agents for textiles, detergents, and plastics.
• Chemical Research & Development: Serves as a valuable intermediate in organic synthesis for creating sulfonated aromatic compounds with specific optical or ionic properties.
• Specialty Surfactant Production: Can be utilized to synthesize anionic surfactants and dispersants due to its multiple sulfonate groups.
• Analytical Reagent: Potential use as a reagent or standard in analytical chemistry for method development and calibration.

Basic Information

Product Name	Trisodium 7-Aminonaphthalene-1,3,5-Trisulphonate
CAS No.	67815-69-4
Molecular Formula	C₁₀H₆NNa₃O₉S₃
Molecular Weight	485.30 g/mol
Synonyms	7-Amino-1,3,5-naphthalenetrisulfonic acid trisodium salt; 1,3,5-Naphthalenetrisulfonic acid, 7-amino-, trisodium salt; Trisodium 7-aminonaphthalene-1,3,5-trisulfonate; 7-Aminonaphthalene-1,3,5-trisulfonic acid sodium salt; Aminonaphthalenetrisulfonic acid sodium salt; Naphthylamine trisulfonic acid sodium salt; ANT acid trisodium salt
EINECS	Contact for details

Quality Control

Our Trisodium 7-Aminonaphthalene-1,3,5-Trisulphonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity and performance. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical characteristics are provided and 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 area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Yellowish to brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
pH (1% Solution)	7.0 - 9.0
Solubility in Water	Clear, complete solution

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