Description

Calcium 4-[(3-Chloro-2-Ethyl-5-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate is a high-purity azo dye intermediate and pigment, valued for its excellent color strength and stability. This compound is critical for manufacturers requiring consistent, high-performance colorants for demanding industrial applications. It is primarily utilized in the production of pigments for plastics, inks, and coatings, serving industries where precise color matching and durability are essential.

Application

• Primary Pigment Manufacturing: Serves as a key intermediate in the synthesis of high-performance organic pigments, particularly for producing shades of red and maroon.
• Plastics and Masterbatch Coloring: Used to impart stable, heat-resistant color to engineering plastics, PVC, polyolefins, and color concentrates.
• Industrial Coatings and Paints: Provides durable coloration for automotive, industrial, and architectural coatings that require weather and light fastness.
• Printing Inks: Employed in the formulation of specialty inks for packaging, publication, and security printing applications.
• Synthetic Fibers: Used in the mass coloration of synthetic fibers such as polyamide and polyester during the polymerization or spinning process.
• Specialty Chemical Synthesis: Acts as a building block or precursor for other complex dye and functional chemical molecules.

Basic Information

Product Name	Calcium 4-[(3-Chloro-2-Ethyl-5-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate
CAS No.	67892-49-3
Molecular Formula	C19H12CaClN2O6S
Molecular Weight	471.91 g/mol
Synonyms	Calcium 3-Hydroxy-4-[(3-chloro-2-ethyl-5-sulfophenyl)azo]-2-naphthalenecarboxylate; C.I. Pigment Red 57:1; Calcium Lithol Rubine; Permanent Carmine FBB; Pigment Red 57:1; Calcium Salt of 4-[(5-Chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthoic Acid (common misnomer); Calcium 4-[(5-Chloro-2-ethyl-4-sulfophenyl)azo]-3-hydroxy-2-naphthoate; Lithol Rubine B Ca
EINECS	Contact for details

Quality Control

Our production of Calcium 4-[(3-Chloro-2-Ethyl-5-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate adheres to stringent quality management systems to ensure batch-to-batch consistency and performance. The product undergoes comprehensive analytical testing, including purity assay, shade strength evaluation, and impurity profiling. Certificates of Analysis (COA) detailing all relevant specifications are provided with each 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 each use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

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

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