Description

n-(2,5-Dimethoxyphenyl)-3-Hydroxy-4-[[5-[(2-Hydroxyethyl)Sulphonyl]-2-Methoxyphenyl]Azo]Naphthalene-2-Carboxamide is a high-purity, synthetic organic compound belonging to the azo dye and pigment intermediate class. This specialized chemical is engineered to deliver consistent color properties and chemical stability, making it a critical component for advanced material formulations. It is primarily sought after by manufacturers in the pigments, dyes, and specialty coatings industries who require precise and reliable performance in their final products.

Application

• Primary Intermediate for High-Performance Pigments: Serves as a key building block in the synthesis of complex organic pigments (Dioxazine, Azo Condensation types) for plastics, paints, and inks.
• Specialty Dye Manufacturing: Used in the production of specialized dyes for textiles, leather, and other substrates requiring specific lightfastness and chemical resistance.
• Functional Colorants: Potential application in the development of colorants for electronic displays, optical filters, and other high-tech applications where precise molecular structure is critical.
• Research & Development: Employed in chemical R&D for creating novel chromophores and studying structure-property relationships in color chemistry.
• Advanced Material Synthesis: Can be utilized in the synthesis of functional polymers and materials where the azo group or specific aromatic structure imparts desired properties.

Basic Information

Product Name	n-(2,5-Dimethoxyphenyl)-3-Hydroxy-4-[[5-[(2-Hydroxyethyl)Sulphonyl]-2-Methoxyphenyl]Azo]Naphthalene-2-Carboxamide
CAS No.	79641-12-6
Molecular Formula	C28H26N4O8S
Molecular Weight	578.60 g/mol
Synonyms	Pigment Violet 23 Intermediate; Dioxazine Violet Intermediate; 3-Hydroxy-4-[[5-[(2-hydroxyethyl)sulfonyl]-2-methoxyphenyl]azo]-N-(2,5-dimethoxyphenyl)-2-naphthalenecarboxamide; CI 51319 Intermediate; Azo Condensation Pigment Precursor; Naphthalene carboxamide azo derivative; 79641-12-6; Violet 23 Carboxamide Intermediate
EINECS	Contact for details

Quality Control

Our production of n-(2,5-Dimethoxyphenyl)-3-Hydroxy-4-[[5-[(2-Hydroxyethyl)Sulphonyl]-2-Methoxyphenyl]Azo]Naphthalene-2-Carboxamide adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to verify identity and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific tests is provided with every shipment 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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, the container should be opaque or stored in darkness to prevent degradation.

Specification

Item	Specification
Appearance	Dark violet to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 2.0%
Solubility (Test)	Soluble in DMF, DMSO; sparingly soluble in common organic solvents

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