Description

Tetrasodium 4-Amino-5-Hydroxy-6-[[2-Methoxy-5-Methyl-4-[[8-[(Phenylsulphonyl)Oxy]-3,6-Disulphonato-1-Naphthyl]Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing specialized dyes and pigments with enhanced color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Key intermediate for the synthesis of high-grade, water-soluble azo dyes and reactive dyes used in textile coloring.
• Production of specialized pigments for inks, including those for digital and industrial printing applications.
• Manufacturing of colorants for paper and leather products requiring specific hue and durability.
• Potential use in the formulation of biological stains and indicator dyes for analytical and laboratory purposes.
• Research and development of novel functional dyes for optical and electronic applications.

Basic Information

Item	Detail
Product Name	Tetrasodium 4-Amino-5-Hydroxy-6-[[2-Methoxy-5-Methyl-4-[[8-[(Phenylsulphonyl)Oxy]-3,6-Disulphonato-1-Naphthyl]Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonate
CAS No.	67939-43-9
Molecular Formula	C34H21N5Na4O19S5
Molecular Weight	Contact for details
Synonyms	Acid Blue 277; C.I. 612110; Tetrasodium 8-(Phenylsulfonyloxy)-3,6-disulfo-1-[[2-methoxy-5-methyl-4-[(4-amino-5-hydroxy-2,7-disulfo-6-naphthalenyl)azo]phenyl]azo]naphthalene; 1-Naphthalenesulfonic acid, 8-[(phenylsulfonyl)oxy]-3,6-disulfo-1-[[2-methoxy-5-methyl-4-[(4-amino-5-hydroxy-2,7-disulfo-6-naphthalenyl)azo]phenyl]azo]-, sodium salt (1:4); Reactive Blue 277 (related class)
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including HPLC and spectrophotometric methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	Max. 20 ppm

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