Description

Sodium 4-Hydroxy-3-[[2-Methoxy-4-(n-Methylamino)Phenyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its role as a key precursor for synthesizing specialized dyes and pigments with excellent light and wash fastness properties. This compound is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking to develop high-performance coloring agents.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial building block in the synthesis of acid dyes and direct dyes for textiles like wool, silk, and nylon.
• Specialty Ink Formulation: Used in the production of colorants for inks in packaging, security printing, and digital applications.
• Pigment Manufacturing: Acts as a precursor in the creation of organic pigments for plastics, coatings, and masterbatches.
• Research & Development: Employed in chemical R&D for developing novel chromophores and functional dyes with specific properties.
• Analytical Chemistry: Can be utilized as a reagent or standard in chromatographic analysis and method development for dye-related compounds.

Basic Information

Item	Detail
Product Name	Sodium 4-Hydroxy-3-[[2-Methoxy-4-(n-Methylamino)Phenyl]Azo]Benzenesulphonate
CAS No.	93919-26-7
Molecular Formula	C14H13N3NaO5S
Molecular Weight	358.32 g/mol
Synonyms	Benzenesulfonic acid, 4-hydroxy-3-[[2-methoxy-4-(methylamino)phenyl]azo]-, sodium salt; C.I. 14780; Acid Red 52 (related class); Sodium 3-[(2-methoxy-4-(methylamino)phenyl)azo]-4-hydroxybenzenesulfonate; 4-Hydroxy-3-[(2-methoxy-4-(methylamino)phenyl)azo]benzenesulfonic acid sodium salt; Azo dye intermediate 93919-26-7; 2-Methoxy-4-(methylamino)azobenzene-4'-sulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-Hydroxy-3-[[2-Methoxy-4-(n-Methylamino)Phenyl]Azo]Benzenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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 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	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	15.0% - 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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