Description

Disodium 5-[[5-[(3-Chloro-2-Hydroxy-5-Sulphonatophenyl)Azo]-2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]Salicylate is a high-purity, complex azo dye intermediate of significant industrial importance. Its precise molecular structure provides excellent chromophoric properties, making it a critical component for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, stable colors with specific performance characteristics.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, polyazo direct and reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, including packaging and security inks, where color strength and stability are paramount.
• Functional Dyes for Non-Textile Uses: Applicable in the formulation of dyes for paper, leather, and wood staining, leveraging its complex structure for enhanced lightfastness.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromophores and studying structure-color relationships in dye chemistry.
• Analytical Reagents: Can be utilized as a colorimetric indicator or a complexing agent in specific analytical chemistry applications.

Basic Information

Product Name	Disodium 5-[[5-[(3-Chloro-2-Hydroxy-5-Sulphonatophenyl)Azo]-2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]Salicylate
CAS No.	83968-51-8
Molecular Formula	C31H17ClN6Na2O11S
Molecular Weight	791.02 g/mol
Synonyms	Disodium 5-[[5-[(3-chloro-2-hydroxy-5-sulfophenyl)azo]-2,4-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]salicylate; C.I. Direct Brown 115; Direct Brown 115; 83968-51-8; Salicylic acid, 5-[[5-[(3-chloro-2-hydroxy-5-sulfophenyl)azo]-2,4-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]-, disodium salt; Azo dye intermediate DB115; Polyazo dye intermediate
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[5-[(3-Chloro-2-Hydroxy-5-Sulphonatophenyl)Azo]-2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]Salicylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing identity, purity, and related substances is provided with each 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
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.