Description

Calcium 4-[(2,5-Dichloro-3-Methyl-6-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate is a high-performance, water-soluble azo pigment lake, valued for its excellent color strength and stability. This compound is specifically engineered to provide a vibrant and durable colorant in demanding industrial applications. It is primarily utilized by manufacturers in the paint, ink, plastic, and textile industries where consistent quality and reliable performance are critical.

Application

• Industrial Paints and Coatings: As a key pigment for automotive, architectural, and industrial maintenance paints requiring lightfastness and chemical resistance.
• Printing Inks: Used in the formulation of flexographic, gravure, and packaging inks to achieve bright, stable shades.
• Plastics and Masterbatch Coloring: Imparts color to a variety of polymers, including PVC, polyolefins, and engineering plastics during processing.
• Textile Dyeing and Printing: Employed as a colorant for synthetic fibers and fabrics.
• Paper Coatings and Specialty Papers: Provides coloration for decorative and functional paper products.
• Artist's Colors and Hobby Paints: A component in the manufacture of professional-grade acrylics, oils, and watercolors.

Basic Information

Product Name	Calcium 4-[(2,5-Dichloro-3-Methyl-6-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate
CAS No.	67906-56-3
Molecular Formula	C18H9CaCl2N2O7S
Molecular Weight	508.34 g/mol
Synonyms	Pigment Red 48:2; Calcium 2-[(2,5-Dichloro-3-methyl-6-sulfophenyl)azo]-3-hydroxy-2-naphthoate; C.I. 15865:2; Calcium Lithol Rubine; Calcium 4-[(2,5-Dichloro-3-methyl-6-sulfonatophenyl)azo]-3-hydroxy-2-naphthoate; Calcium salt of 2-[(2,5-Dichloro-3-methyl-6-sulfophenyl)azo]-3-hydroxy-2-naphthoic acid; Lithol Rubine B Ca
EINECS	Contact for details

Quality Control

Our production of Calcium 4-[(2,5-Dichloro-3-Methyl-6-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistency in color strength, purity, and physical properties. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance processes.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	≤ 1.0%
Ash Content	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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