Description

Tetrasodium 4-amino-5-hydroxy-6-[[2-methoxy-5-methyl-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing reactive and direct dyes, offering excellent color strength and chromophore properties. This compound is essential for manufacturers in the textile, leather, and specialty ink industries seeking to produce vibrant, wash-fast colors.

Application

• Primary Intermediate for Reactive Dyes: Synthesis of high-performance dyes for cotton, wool, and nylon fibers.
• Direct Dye Production: Manufacturing of dyes used for paper coloring and textile applications requiring high substantivity.
• Leather Dyeing: Key component in formulations for uniform and deep coloration of leather goods.
• Inkjet Ink Formulations: Used in the production of specialty inks for digital textile printing.
• Research & Development: Serves as a standard or building block in chemical research for novel chromophores.
• Industrial Colorants: Potential use in the coloration of plastics and other polymeric materials.

Basic Information

Product Name	Tetrasodium 4-amino-5-hydroxy-6-[[2-methoxy-5-methyl-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate
CAS No.	85959-29-1
Molecular Formula	C36H30N6Na4O22S6
Molecular Weight	~1196.0 g/mol (Contact for exact details)
Synonyms	Tetrasodium 6-[(4-[(2-Sulfatoethyl)sulfonyl]-2-methoxy-5-methylphenyl)azo]-5-hydroxy-3-[(4-[(2-sulfatoethyl)sulfonyl]phenyl)azo]-4-amino-2,7-naphthalenedisulfonate; Reactive Dye Intermediate; Azo Dye Precursor; C.I. Reactive Red 198 Intermediate; Tetrasodium Salt of a Bis(vinylsulfone) Azo Dye; 85959-29-1; 6-[[2-Methoxy-5-methyl-4-[(2-sulfonatooxyethyl)sulfonyl]phenyl]azo]-5-hydroxy-3-[[4-[(2-sulfonatooxyethyl)sulfonyl]phenyl]azo]-4-amino-2,7-naphthalenedisulfonic Acid Tetrasodium Salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet precise customer specifications. A Certificate of Analysis (COA) detailing identity, purity, and related substances is provided with every shipment.

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 moisture absorption and potential caking.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Water Solubility	Freely soluble
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.