Description

2-Naphthylamine-4,6,8-Trisulfonic Acid is a high-purity, multi-sulfonated aromatic amine intermediate of significant industrial importance. Its unique chemical structure, featuring three sulfonic acid groups, makes it a versatile building block for the synthesis of complex dyes, pigments, and specialty chemicals. This compound is essential for manufacturers and R&D laboratories in the fine chemical, dye, and advanced material sectors seeking reliable, high-quality intermediates for their synthesis processes.

Application

• Dye and Pigment Intermediate: A critical precursor in the manufacture of acid dyes, direct dyes, and reactive dyes, particularly for textiles like wool, silk, and nylon.
• Fluorescent Brightener Synthesis: Used in the production of optical brightening agents (OBAs) for paper, detergents, and plastics.
• Specialty Chemical Synthesis: Serves as a key building block for creating complex sulfonated compounds used in various industrial applications.
• Research & Development: Employed in academic and industrial R&D for developing new polymeric materials, ligands, and functional molecules.
• Photographic Chemical: Can be utilized in the synthesis of certain photographic chemicals and sensitizers.
• Corrosion Inhibitor Formulation: Potential use as a component in formulations for metal surface treatment and protection.

Basic Information

Product Name	2-Naphthylamine-4,6,8-Trisulfonic Acid
CAS No.	27310-25-4
Molecular Formula	C10H9NO9S3
Molecular Weight	383.37 g/mol
Synonyms	2-Aminonaphthalene-4,6,8-trisulfonic Acid; 4,6,8-Trisulfo-2-naphthylamine; 2-Naphthylamine-4,6,8-trisulfonate; 2-Amino-4,6,8-naphthalenetrisulfonic Acid; 2-NT Acid; NSC 403697; 2-Naphthylaminetrisulfonic Acid; 4,6,8-Trisulfonaphthyl-2-amine
EINECS	Contact for details

Quality Control

Our 2-Naphthylamine-4,6,8-Trisulfonic Acid is manufactured under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Off-white to light brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 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.