Description

3-Hydroxy-4-[[2-Hydroxy-8-[(Methylsulphonyl)Amino]-1-Naphthyl]Azo]Benzenesulphonamide is a specialized azo dye intermediate characterized by its complex molecular structure, which imparts specific chromophoric and functional properties. This compound is engineered for high-performance applications where precise color development and chemical stability are critical. It is primarily utilized by manufacturers in the dye and pigment, textile, and specialty chemical industries seeking reliable intermediates for producing vivid and durable colors.

Application

This advanced azo intermediate serves as a key building block in several high-value industrial processes. Its primary and related applications include:

• Synthesis of high-grade azo dyes and pigments for textiles and fabrics.
• Production of colorants for inks, coatings, and plastics requiring excellent lightfastness.
• Manufacturing of specialized dyes for leather and paper products.
• Use as a chemical reagent and intermediate in organic synthesis and research laboratories.
• Potential applications in the development of functional dyes for non-textile uses.

Basic Information

Product Name	3-Hydroxy-4-[[2-Hydroxy-8-[(Methylsulphonyl)Amino]-1-Naphthyl]Azo]Benzenesulphonamide
CAS No.	67892-97-1
Molecular Formula	C₁₇H₁₆N₄O₆S₂
Molecular Weight	452.46 g/mol
Synonyms	Benzenesulfonamide, 3-hydroxy-4-[[2-hydroxy-8-[(methylsulfonyl)amino]-1-naphthalenyl]azo]-; C.I. 18055; Acid Orange 156; Azo dye intermediate 67892-97-1; 8-[(Methylsulfonyl)amino]-1-naphthol azo derivative; 3-Hydroxy-4-[(2-hydroxy-8-(methylsulfonylamino)-1-naphthyl)azo]benzenesulfonamide
EINECS	Contact for details

Quality Control

Our production of 3-Hydroxy-4-[[2-Hydroxy-8-[(Methylsulphonyl)Amino]-1-Naphthyl]Azo]Benzenesulphonamide adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. The material is manufactured and tested in facilities that follow cGMP (current Good Manufacturing Practice) guidelines where applicable. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing purity, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials and sources of ignition. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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