Description

1-Naphthylamine-4,6,8-Trisulfonic Acid is a high-purity, multi-sulfonated aromatic amine intermediate of significant industrial importance. Its value lies in its versatile chemical structure, which serves as a key building block for synthesizing complex dyes, pigments, and optical brighteners. This product is essential for manufacturers in the specialty chemicals, textile dye, and advanced materials sectors seeking reliable, high-quality raw materials for their production processes.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of acid dyes, direct dyes, and reactive dyes, particularly for coloring wool, silk, and nylon.
• Optical Brightener Production: Used in the manufacture of fluorescent whitening agents (FWAs) for paper, detergents, and textiles.
• Chemical Synthesis: Serves as a versatile intermediate in organic synthesis for creating more complex sulfonated aromatic compounds.
• Research & Development: Employed in laboratory settings for developing new chromophores and functional materials.
• Specialty Chemical Manufacturing: Used in the production of additives and specialty chemicals where sulfonic acid groups are required for solubility or ionic character.

Basic Information

Product Name	1-Naphthylamine-4,6,8-Trisulfonic Acid
CAS No.	17894-99-4
Molecular Formula	C₁₀H₉NO₉S₃
Molecular Weight	383.37 g/mol
Synonyms	1-Naphthylamine-4,6,8-trisulfonic acid; 4,6,8-Trisulfo-1-naphthylamine; 1-Aminonaphthalene-4,6,8-trisulfonic acid; Naphthylamine trisulfonic acid; 1,5,7-Naphthylamine trisulfonic acid; 4-Amino-1,3,5-naphthalenetrisulfonic acid; 1-Naphthalenamine-4,6,8-trisulfonic acid; NSC 40336
EINECS	241-852-1

Quality Control

Our 1-Naphthylamine-4,6,8-Trisulfonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

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). Keep away from strong oxidizing agents and strong bases. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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