Description

2-Methoxy-6-Sulpho-4-[[7-Sulpho-4-[(3-Sulphophenyl)Azo]-1-Naphthyl]Azo]Naphthalene-1-Diazonium Chloride is a high-purity, multi-sulphonated azo diazonium salt, primarily valued for its role as a key intermediate in the synthesis of specialized dyes and pigments. Its complex molecular structure, featuring multiple sulphonic acid groups and a diazonium functionality, enables the production of colorants with excellent water solubility, brightness, and specific affinity for various substrates. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced, high-performance color products.

Application

• Primary Intermediate for Reactive Dyes: A critical building block in the synthesis of high-grade reactive dyes for cotton and other cellulosic fibers, providing strong covalent bonds for superior wash and light fastness.
• Specialty Pigment Synthesis: Used in the manufacturing of complex, water-soluble azo pigments and dyes for inks, including those for digital textile printing and high-quality packaging.
• Functional Dye Production: Serves as a precursor for dyes used in biological staining, sensitizers for photographic applications, and other functional colorants requiring specific ionic properties.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromophores and studying azo coupling reactions and diazonium chemistry.
• Paper Coloring: Can be utilized in the production of dyes for coloring paper where high intensity and specific tonal qualities are required.
• Leather Dyeing: Acts as an intermediate for dyes used in the leather industry to achieve deep, uniform colors.

Basic Information

Product Name	2-Methoxy-6-Sulpho-4-[[7-Sulpho-4-[(3-Sulphophenyl)Azo]-1-Naphthyl]Azo]Naphthalene-1-Diazonium Chloride
CAS No.	67906-43-8
Molecular Formula	C27H17N5O11S3Cl
Molecular Weight	758.09 g/mol
Synonyms	1-Diazonium-2-methoxy-6-sulfo-4-[(7-sulfo-4-[(3-sulfophenyl)azo]-1-naphthyl)azo]naphthalene Chloride; C.I. Azoic Diazo Component 44; Azoic Diazo 44; Diazo Fast Scarlet G Base; 67906-43-8; 4-[[7-Sulfo-4-[(3-sulfophenyl)azo]-1-naphthalenyl]azo]-2-methoxy-6-sulfonaphthalene-1-diazonium Chloride
EINECS	Contact for details

Quality Control

Every batch of our 2-Methoxy-6-Sulpho-4-[[7-Sulpho-4-[(3-Sulphophenyl)Azo]-1-Naphthyl]Azo]Naphthalene-1-Diazonium Chloride is manufactured under strict quality management systems and undergoes comprehensive analytical testing. We ensure consistent purity, reactivity, and color strength critical for downstream synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming specifications for assay, impurity profile, solubility, and other key parameters. Our quality commitment supports your need for reliable, high-performance intermediates.

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 sealed when not in use to prevent degradation from atmospheric moisture. Isolate from incompatible materials such as strong bases, reducing agents, and heat sources.

Specification

Item	Specification
Appearance	Brown to dark brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Total impurities: Max. 5.0%

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