Description

5,5'-[[6-[[5-Hydroxy-6-[(2-Carboxyphenyl)Azo]-7-Sulfo-2-Naphthalenyl]Amino]-1,3,5-Triazine-2,4-Diyl]Bis[Imino(4,1-Phenylene)Azo]]Bis[2-Hydroxybenzoic Acid] is a high-purity, complex azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing high-performance dyes and pigments with enhanced color fastness and stability. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, offering excellent tinting strength.
• Textile Colorants: Essential for creating dyes with superior wash and light fastness properties for the textile industry.
• Specialty Chemical Synthesis: Serves as a precursor for advanced functional dyes used in analytical chemistry and research.
• Inkjet Ink Formulations: Employed in the development of specialized inks requiring high color purity and stability.

Basic Information

Product Name	5,5'-[[6-[[5-Hydroxy-6-[(2-Carboxyphenyl)Azo]-7-Sulfo-2-Naphthalenyl]Amino]-1,3,5-Triazine-2,4-Diyl]Bis[Imino(4,1-Phenylene)Azo]]Bis[2-Hydroxybenzoic Acid]
CAS No.	23639-64-7
Molecular Formula	C52H32N12O14S
Molecular Weight	1056.95 g/mol
Synonyms	Reactive Black 5 Precursor; C.I. Reactive Black 5 Intermediate; Benzoic acid, 5,5'-[[6-[[5-hydroxy-6-[(2-carboxyphenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazine-2,4-diyl]bis[imino(4,1-phenylene)azo]]bis[2-hydroxy-; 5,5'-[6-({5-Hydroxy-6-[(2-carboxyphenyl)diazenyl]-7-sulfonaphthalen-2-yl}amino)-1,3,5-triazine-2,4-diyl]bis(azanediyl)bis(4,1-phenylene)diazen-1-ium-1-yl]bis(2-hydroxybenzoate); Azo Dye Intermediate 23639-64-7; Tetrasodium 5,5'-[[6-[[5-hydroxy-6-[(2-carboxyphenyl)azo]-7-sulfo-2-naphthyl]amino]-1,3,5-triazine-2,4-diyl]bis[imino(4,1-phenylene)azo]]bis(2-hydroxybenzoate) (related salt form)
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using modern analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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