Description

Disodium 4-Hydroxy-3-[(4-Methyl-2-Sulphonatophenyl)Azo]-7-[[[6-(Vinylsulphonyl)Bicyclo[2.2.1]Hept-2-Yl]Carbonyl]Amino]Naphthalene-2-Sulphonate is a high-performance, reactive dye intermediate designed for creating durable colorants. This compound is engineered to provide excellent covalent bonding to substrates, resulting in superior wash and light fastness properties. It is a critical raw material for manufacturers in the textile, leather, and specialty polymer industries seeking to produce vibrant, long-lasting colors.

Application

• Reactive Dye Synthesis: Primary intermediate for manufacturing high-quality fiber-reactive dyes for cotton, wool, and nylon.
• Textile Coloration: Used in the production of dyes for textile printing and exhaust dyeing processes, offering brilliant shades.
• Leather Finishing: Key component in dyes for leather finishing, providing deep, uniform coloration with good adhesion.
• Paper Dyeing: Employed in the formulation of dyes for specialty paper products requiring high color strength.
• Functional Polymer Modification: Acts as a chromophore monomer for synthesizing colored polymers with specific optical properties.
• Research & Development: Serves as a standard or building block in chemical research for developing new chromogenic materials.

Basic Information

Product Name	Disodium 4-Hydroxy-3-[(4-Methyl-2-Sulphonatophenyl)Azo]-7-[[[6-(Vinylsulphonyl)Bicyclo[2.2.1]Hept-2-Yl]Carbonyl]Amino]Naphthalene-2-Sulphonate
CAS No.	93803-34-0
Molecular Formula	C27H25N4Na2O10S3
Molecular Weight	722.67 g/mol
Synonyms	Reactive Red 198; C.I. Reactive Red 198; Disodium 7-[[6-(vinylsulfonyl)bicyclo[2.2.1]heptane-2-carbonyl]amino]-4-hydroxy-3-[(4-methyl-2-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate; Vinylsulfone Reactive Dye Intermediate; 93803-34-0; Bicyclo[2.2.1]heptane dye intermediate; Azo naphthalene sulfonate dye
EINECS	Contact for details

Quality Control

Our production of Disodium 4-Hydroxy-3-[(4-Methyl-2-Sulphonatophenyl)Azo]-7-[[[6-(Vinylsulphonyl)Bicyclo[2.2.1]Hept-2-Yl]Carbonyl]Amino]Naphthalene-2-Sulphonate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with industry specifications. Certificates of Analysis (COA) documenting key 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual ≤ 1.0%, Total ≤ 3.0%

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