Description

Magnesium 4-[(5-Chloro-4-Methyl-2-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate is a high-purity, organometallic azo compound primarily valued for its exceptional colorant and chelating properties. This compound is engineered to deliver consistent performance and batch-to-batch reliability for demanding industrial applications. It is a critical intermediate and functional additive for manufacturers in the pigments, specialty coatings, and advanced material synthesis sectors.

Application

• Pigment and Dye Intermediate: Serves as a key precursor in the synthesis of high-performance, metal-complex azo pigments, particularly for applications requiring lightfastness and thermal stability.
• Specialty Coatings and Inks: Used in the formulation of industrial coatings, printing inks, and artist colors where specific hue and chemical resistance are paramount.
• Functional Additive for Polymers: Acts as a colorant and potential stabilizer in the production of engineered plastics and synthetic fibers.
• Analytical Reagent: Employed in laboratory settings as a chelating agent or colorimetric indicator in specific metallurgical and chemical analysis procedures.
• Research & Development: Utilized in chemical R&D for developing new coordination complexes and studying azo compound chemistry.

Basic Information

Product Name	Magnesium 4-[(5-Chloro-4-Methyl-2-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate
CAS No.	71832-83-2
Molecular Formula	C18H11ClMgN2O6S
Molecular Weight	443.11 g/mol (anhydrous basis)
Synonyms	Magnesium 3-Hydroxy-4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylate; C.I. Pigment Red 57:1 (Magnesium Salt); Magnesium Salt of 4-[(5-Chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthoic Acid; 5-Chloro-4-methyl-2-[(3-hydroxy-2-carboxy-1-naphthyl)azo]benzenesulfonic Acid Magnesium Salt; Magnesium Lithol Rubine BCA; Pigment Red 57:1 Mg Salt; Magnesium 3-Hydroxy-4-((5-chloro-4-methyl-2-sulfonatophenyl)azo)naphthalene-2-carboxylate
EINECS	Contact for details

Quality Control

Our production of Magnesium 4-[(5-Chloro-4-Methyl-2-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate adheres to stringent quality management protocols to ensure product consistency and purity. Each batch is analyzed against rigorous in-house specifications, which typically include identity confirmation, assay, and control of key impurities. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory needs.

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 and handling.

Specification

Item	Specification
Appearance	Red to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Within specified range
Solubility	Characteristic

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