Description

Calcium 4-[(5-Chloro-4-Methyl-2-Sulphonatophenyl)Azo]-1-Hydroxy-2-Naphthoate is a high-purity azo dye intermediate and pigment, valued for its consistent color strength and chemical stability. This compound is essential for manufacturers requiring precise and reliable colorants for demanding industrial applications. It is primarily utilized in the production of pigments for plastics, inks, and coatings, serving industries where batch-to-batch consistency is critical.

Application

• Primary intermediate for the synthesis of high-performance azo pigments and dyes.
• Manufacturing of colorants for plastics and synthetic resins.
• Production of industrial inks, including packaging and printing inks.
• Key component in formulating pigments for coatings and paints.
• Used in the coloration of specialty textiles and fibers.
• Potential use as a colorant in masterbatches for consistent polymer coloring.

Basic Information

Product Name	Calcium 4-[(5-Chloro-4-Methyl-2-Sulphonatophenyl)Azo]-1-Hydroxy-2-Naphthoate
CAS No.	83400-26-4
Molecular Formula	C18H10CaClN2O6S
Molecular Weight	449.88 g/mol
Synonyms	Calcium 4-[(5-Chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylate; C.I. Pigment Red 57:1; Calcium Lithol Rubine B; Calcium Salt of Lithol Rubine; 5-Chloro-4-methyl-2-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonic Acid Calcium Salt; C.I. 15850:1; Lithol Rubine B Ca Salt; Permanent Carmine FBB
EINECS	Contact for details

Quality Control

Our production of Calcium 4-[(5-Chloro-4-Methyl-2-Sulphonatophenyl)Azo]-1-Hydroxy-2-Naphthoate adheres to stringent quality management protocols to ensure product integrity and performance. Every batch is tested against rigorous specifications for purity, color value, and physical properties. Certificates of Analysis (COA) documenting key parameters 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept 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. Std.)
Moisture (KF)	≤ 5.0%
Ash Content	≤ 30.0%
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.