Description

Tetrasodium 3,3'-[Carbonylbis[Imino-m-Phenylenecarbonylimino(5-Methoxy-2-Methyl-p-Phenylene)Azo]]Bis[6-Hydroxy-5-Sulphonatobenzoate] 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 excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and durable colorants.

Application

• Textile Dyeing: A key intermediate for the synthesis of reactive and direct dyes used on cotton, wool, and nylon fibers.
• Ink Manufacturing: Used in the production of high-performance inks for digital, packaging, and security printing applications.
• Industrial Pigments: Serves as a precursor for creating organic pigments used in plastics, paints, and coatings.
• Research & Development: Employed in chemical research for developing novel chromophores and functional dyes.
• Specialty Coatings: Utilized in formulating coatings that require specific light-fastness and chemical resistance properties.
• Paper Coloring: Applied in the manufacture of dyes for high-quality paper and board products.

Basic Information

Product Name	Tetrasodium 3,3'-[Carbonylbis[Imino-m-Phenylenecarbonylimino(5-Methoxy-2-Methyl-p-Phenylene)Azo]]Bis[6-Hydroxy-5-Sulphonatobenzoate]
CAS No.	95008-89-2
Molecular Formula	C48H34N8Na4O19S2
Molecular Weight	~1160.9 g/mol
Synonyms	Acid Blue 277; C.I. 612115; Tetrasodium 6,6'-((((3,3'-((5-Methoxy-2-methyl-1,4-phenylene)bis(azanediyl))bis(carbonyl))bis(3,1-phenylene))bis(azanediyl))bis(carbonyl))bis(2-hydroxy-5-sulfonatobenzoate); Reactive Blue 277 Intermediate; Azo Dye Intermediate 95008-89-2
EINECS	Contact for details

Quality Control

Our Tetrasodium 3,3'-[Carbonylbis[Imino-m-Phenylenecarbonylimino(5-Methoxy-2-Methyl-p-Phenylene)Azo]]Bis[6-Hydroxy-5-Sulphonatobenzoate] is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and performance. Certificates of Analysis (COA) detailing key specifications 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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