Description

Naphthol As-Kn CAS NO 4444-48-8 is a specialized naphthol derivative widely used as a key coupling component in the synthesis of azo pigments and dyes. This compound is valued for its ability to produce high-performance, lightfast pigments with excellent color properties. It is an essential intermediate for manufacturers in the pigment, dye, and specialty chemical industries seeking to develop vivid and durable colorants for plastics, inks, and coatings.

Application

• Primary coupling component for the synthesis of high-performance azo pigments and dyes.
• Production of organic pigments for plastics coloration, providing excellent dispersion and heat stability.
• Manufacturing of pigments for industrial and automotive coatings, offering superior weatherability and chemical resistance.
• Key intermediate in colorants for printing inks, including packaging and publication grades.
• Used in the synthesis of specialty dyes for textiles and fibers.
• Research and development of novel functional dyes and advanced organic materials.

Basic Information

Product Name	Naphthol As-Kn
CAS No.	4444-48-8
Molecular Formula	C17H13NO2
Molecular Weight	263.29 g/mol
Synonyms	3-Hydroxy-2-naphthanilide; Naphthol AS-KN; Naphthol ASKN; C.I. Azoic Coupling Component 18; Azoic Coupling Component 18; Naphthol AS-K; N-(2-Hydroxynaphthalen-1-yl)benzamide; Benzamide, N-(2-hydroxy-1-naphthalenyl)-
EINECS	Contact for details

Quality Control

Our Naphthol As-Kn is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes comprehensive analytical testing, including HPLC for assay and identification by infrared spectroscopy. A Certificate of Analysis (COA) detailing purity, physical characteristics, and impurity profiles is provided with each shipment to guarantee it meets your specific application requirements.

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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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