Description

8-Amino-1-(p-Tolyl)Naphthalenesulphonic Acid is a specialized aromatic sulfonic acid derivative that serves as a high-value intermediate in advanced chemical synthesis. Its molecular structure, featuring both an amino group and a sulfonic acid moiety, makes it a versatile building block for creating functional dyes, pigments, and optical materials. This compound is primarily sought after by manufacturers in the fine chemical, specialty dye, and advanced material research sectors.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of acid dyes, reactive dyes, and naphthol AS-series pigments, imparting specific color and fastness properties.
• Optical Brightener Production: Used in the manufacture of fluorescent whitening agents (FWAs) for paper, textiles, and detergents.
• Liquid Crystal and OLED Material Synthesis: Serves as a building block for charge-transporting materials and emissive layers in display technologies.
• Pharmaceutical Intermediate: Potential use in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Corrosion Inhibitor Formulation: Incorporated into specialty formulations for metal surface treatment and protection.
• Research & Development: Utilized in academic and industrial R&D for exploring new organic semiconductors and functional polymers.

Basic Information

Product Name	8-Amino-1-(p-Tolyl)Naphthalenesulphonic Acid
CAS No.	71412-00-5
Molecular Formula	C₁₇H₁₅NO₃S
Molecular Weight	313.37 g/mol
Synonyms	8-Amino-1-(4-methylphenyl)naphthalene-1-sulfonic acid; 1-(p-Tolyl)-8-aminonaphthalenesulfonic Acid; 8-Amino-1-(4-tolyl)naphthalene-1-sulfonic acid; 1-(4-Methylphenyl)-8-naphthalenesulfonic acid, 8-amino-; 8-Amino-1-tolylnaphthalenesulfonic acid; 8-Amino-1-(p-tolyl)-1-naphthalenesulfonic acid; 71412-00-5; p-Tolyl Peri Acid (analogous name)
EINECS	Contact for details

Quality Control

Our 8-Amino-1-(p-Tolyl)Naphthalenesulphonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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