Description

2-Naphthylamine-3,6,8-Trisulfonic Acid is a high-purity, multi-sulfonated aromatic amine intermediate essential for the synthesis of specialized dyes and pigments. Its unique molecular structure, featuring three sulfonic acid groups, provides excellent water solubility and binding sites for creating vivid, colorfast azo dyes. This compound is a critical raw material for manufacturers in the dye and pigment industry, as well as for researchers developing advanced functional materials and optical brighteners.

Application

• Primary Intermediate for Azo Dyes: Serves as a key diazo component in the production of acid dyes, direct dyes, and reactive dyes for textiles, leather, and paper.
• Pigment Manufacturing: Used in the synthesis of high-performance organic pigments that require excellent lightfastness and thermal stability.
• Optical Brightening Agents (OBAs): Acts as a precursor in the manufacture of fluorescent whitening agents used in detergents, plastics, and paper products.
• Chemical Research & Synthesis: Employed as a versatile building block in organic chemistry for creating sulfonated polymers and other functionalized aromatic compounds.
• Specialty Colorants: Utilized in the formulation of inks, coatings, and specialty colorants where specific solubility and hue properties are required.

Basic Information

Product Name	2-Naphthylamine-3,6,8-Trisulfonic Acid
CAS No.	41016-61-9
Molecular Formula	C₁₀H₉NO₉S₃
Molecular Weight	383.37 g/mol
Synonyms	2-Aminonaphthalene-3,6,8-trisulfonic Acid; 3,6,8-Aminonaphthol Trisulfonic Acid; 2-Naphthylamine-3,6,8-trisulfonate; 6-Amino-1,3,5-naphthalenetrisulfonic Acid; 2-Amino-3,6,8-naphthalenetrisulfonic Acid; 3,6,8-Amino Naphthol Trisulfonic Acid; 2-NA-3,6,8-TSA; A-Naphthylamine Trisulfonic Acid
EINECS	Contact for details

Quality Control

Our 2-Naphthylamine-3,6,8-Trisulfonic Acid is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, sulfonation degree, and impurity profiles. Our quality commitment aligns with industrial chemical standards, and we support our clients with the technical documentation necessary for their quality assurance and regulatory compliance needs.

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) and light-sensitive; therefore, containers must be kept sealed when not in use to prevent absorption of atmospheric moisture and degradation.

Specification

Item	Specification
Appearance	Off-white to light brown powder or crystals
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfonation Degree	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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