Description

Trisodium 8-Aminonaphthalene-1,3,6-Trisulphonate is a high-purity, water-soluble aromatic intermediate essential for the synthesis of advanced dyes and functional colorants. Its unique structure, featuring three sulfonate groups and a primary amine, provides excellent solubility and reactivity for creating vivid, stable hues. This compound is a critical raw material for manufacturers in the dye, pigment, and specialty chemical industries seeking to produce high-performance products.

Application

• Dye Intermediate: A key precursor for the synthesis of acid dyes, direct dyes, and reactive dyes, particularly for textiles like wool, silk, and nylon.
• Fluorescent Brightening Agent (FBA) Synthesis: Used in manufacturing optical brighteners for paper, detergents, and textiles.
• Functional Pigment Production: Serves as a building block for creating pigments with specific properties for inks, coatings, and plastics.
• Biochemical Staining: Potential use as an intermediate for developing histological stains and biological markers.
• Research & Development: Employed in organic synthesis and material science research for novel aromatic compounds.
• Photographic Chemical: Can be used in the formulation of certain photographic chemicals and sensitizers.

Basic Information

Product Name	Trisodium 8-Aminonaphthalene-1,3,6-Trisulphonate
CAS No.	901-79-1
Molecular Formula	C10H6NNa3O9S3
Molecular Weight	473.30 g/mol
Synonyms	8-Amino-1,3,6-naphthalenetrisulfonic acid trisodium salt; Acid Yellow 7 (precursor); Naphthol Yellow S related intermediate; 1,3,6-Naphthalenetrisulfonic acid, 8-amino-, trisodium salt; Trisodium 8-aminonaphthalene-1,3,6-trisulfonate; C.I. 56205; H-Acid related intermediate; Aminonaphthalene trisulfonate sodium salt
EINECS	Contact for details

Quality Control

Our Trisodium 8-Aminonaphthalene-1,3,6-Trisulphonate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye synthesis. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee consistency and reliability for your production processes.

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 after opening to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, yellow solution

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