Description

Magnesium 3-Hydroxy-4-[(4-Methyl-2-Sulphonatophenyl)Azo]-2-Naphthoate is a high-purity, water-soluble azo dye complex, specifically engineered for demanding industrial applications. This compound matters because it offers exceptional color strength and stability, providing reliable and consistent performance in formulations where lightfastness and chemical resistance are critical. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking a robust pigment or dye intermediate. Its unique magnesium salt form enhances solubility and compatibility in various aqueous systems.

Application

• Textile Dyeing and Printing: As a key colorant for dyeing natural and synthetic fibers, offering good wash and light fastness.
• Ink Manufacturing: Used in the formulation of inks for packaging, security printing, and specialty publications.
• Industrial Coatings and Paints: Imparts color to coatings where specific hue and durability under environmental stress are required.
• Paper Coloring: Employed in the surface coloring and coating of high-grade papers and boards.
• Plastics and Masterbatch: Acts as a coloring agent for polymers, providing uniform dispersion and heat stability during processing.
• Leather Finishing: Used in dyes and finishes for leather goods to achieve vibrant and durable colors.

Basic Information

Product Name	Magnesium 3-Hydroxy-4-[(4-Methyl-2-Sulphonatophenyl)Azo]-2-Naphthoate
CAS No.	62103-78-0
Molecular Formula	C18H12MgN2O6S
Molecular Weight	408.67 g/mol
Synonyms	Magnesium 3-Hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylate; C.I. Pigment Red 57:1; Lithol Rubine B Ca; Permanent Carmine FBB; Permanent Red FGR; Pigment Red 57:1; 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-, magnesium salt (1:1)
EINECS	Contact for details

Quality Control

Our production of Magnesium 3-Hydroxy-4-[(4-Methyl-2-Sulphonatophenyl)Azo]-2-Naphthoate adheres to stringent quality management systems to ensure batch-to-batch consistency and performance. Every lot is tested against comprehensive specifications for color value, strength, purity, and impurity profile. Certificates of Analysis (COA) documenting these results 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Red powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	≤ 5.0%
Ash Content	≤ 30.0%
Water Solubility	Freely soluble
pH (1% Solution)	7.0 - 9.0

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