Description

Naphthol As-Mx is a high-purity chemical intermediate belonging to the naphthol AS series of azoic coupling components. This compound is valued for its role in synthesizing high-performance organic pigments and dyes, offering excellent color fastness and thermal stability. It is primarily utilized by manufacturers in the pigment, dye, and specialty chemical industries for producing vivid and durable colorants.

Application

• Primary coupling component for the synthesis of high-performance azo pigments and dyes.
• Key intermediate in the production of pigments for plastics, synthetic fibers, and masterbatches.
• Used in manufacturing colorants for printing inks, including packaging and publication inks.
• Essential in the formulation of industrial paints and coatings requiring high weather resistance.
• Employed in the coloration of specialty papers and decorative laminates.
• Acts as a chemical building block in advanced organic synthesis for research and development.

Basic Information

Product Name	Naphthol As-Mx
CAS No.	92-75-1
Molecular Formula	C₁₈H₁₃NO₃
Molecular Weight	291.30 g/mol
Synonyms	3-Hydroxy-N-(3-nitrophenyl)-2-naphthamide; Naphthol AS-MX; C.I. Azoic Coupling Component 12; 2-Hydroxy-3-naphthoic acid 3'-nitroanilide; 3'-Nitro-2-hydroxy-3-naphthanilide; Naphthol AS-3-NO₂; Naphthol AS-NO₂
EINECS	202-187-8

Quality Control

Our Naphthol As-Mx is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including HPLC and spectroscopic methods, to meet precise specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	243 - 247 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.2%
Heavy Metals (as Pb)	≤ 20 ppm

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