Description

Sodium 2-[4-[[2,4-Dihydroxy-3-(Phenylazo)Phenyl]Azo]Phenyl]-6-Methylbenzothiazole-7-Sulphonate is a high-purity, synthetic azo dye intermediate known for its distinct chromophoric properties. This compound matters for its critical role in producing vivid and stable colorants, particularly in specialized industrial applications where precise hue and chemical compatibility are paramount. It is primarily needed by manufacturers in the textile dyeing, leather finishing, and specialty ink formulation sectors.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the coloration of synthetic fibers such as polyester and nylon.
• Used in the production of colorants for leather finishing and tanning processes.
• Employed in the formulation of specialized inks for industrial printing and marking.
• Acts as a colorant precursor in certain research and analytical chemistry applications.
• Potential use in the development of functional dyes for non-textile applications.

Basic Information

Product Name	Sodium 2-[4-[[2,4-Dihydroxy-3-(Phenylazo)Phenyl]Azo]Phenyl]-6-Methylbenzothiazole-7-Sulphonate
CAS No.	5915-59-3
Molecular Formula	C26H18N5NaO6S2
Molecular Weight	583.57 g/mol
Synonyms	Acid Orange 156; C.I. 26501; Sodium 7-(4-((2,4-dihydroxy-3-(phenylazo)phenyl)azo)phenyl)-6-methyl-2-benzothiazolesulfonate; 2-[4-[[2,4-Dihydroxy-3-(phenylazo)phenyl]azo]phenyl]-6-methylbenzothiazole-7-sulfonic acid sodium salt; Azo dye intermediate 5915-59-3; 7-(p-(2,4-Dihydroxy-3-phenylazophenylazo)phenyl)-6-methyl-2-benzothiazolesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 2-[4-[[2,4-Dihydroxy-3-(Phenylazo)Phenyl]Azo]Phenyl]-6-Methylbenzothiazole-7-Sulphonate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. Certificates of Analysis (COA) documenting 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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