Description

1-Naphthol-3,6,8-Trisulfonic Acid Trisodium Salt is a high-purity, water-soluble aromatic sulfonate derivative, essential as a key intermediate in the synthesis of specialized dyes and pigments. Its value lies in its ability to introduce sulfonic acid groups, enhancing the water solubility and affinity of final products for substrates like textiles and paper. This compound is critically needed by manufacturers in the dye and pigment industry, as well as by research institutions developing advanced functional materials and analytical reagents.

Application

• Primary Intermediate for Dyes & Pigments: A crucial building block in the synthesis of acid dyes, direct dyes, and reactive dyes, particularly for coloring wool, silk, nylon, and paper.
• Functional Chemical Synthesis: Used in the production of optical brighteners, fluorescent whiteners, and other specialty aromatic compounds.
• Research & Development: Serves as a standard or reagent in chemical research for studying sulfonation reactions and developing new chromophores.
• Analytical Chemistry: Can be employed as a complexing agent or a precursor for reagents used in specific detection methods.

Basic Information

Product Name	1-Naphthol-3,6,8-Trisulfonic Acid Trisodium Salt
CAS No.	31894-34-5
Molecular Formula	C₁₀H₅Na₃O₁₀S₃
Molecular Weight	490.29 g/mol
Synonyms	1-Naphthol-3,6,8-trisulfonic acid trisodium salt; Trisodium 1-naphthol-3,6,8-trisulfonate; 3,6,8-Pyrenetrisulfonic acid, 1-hydroxy-, trisodium salt (related); Naphthol trisulfonic acid sodium salt; 1-Hydroxynaphthalene-3,6,8-trisulfonic acid trisodium salt; Acid Yellow 76 intermediate; Koch's Acid Trisodium Salt (derivative); 1-Naphthol-3,6,8-trisulfonate trisodium
EINECS	Contact for details

Quality Control

Our 1-Naphthol-3,6,8-Trisulfonic Acid Trisodium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity and performance, meeting the specifications required for high-end industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
pH (1% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 20 ppm

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