Description

Pentasodium 4-amino-6-[[5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-2-sulphonatophenyl]azo]-3-[(2,5-disulphonatophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonate is a high-purity, polyfunctional reactive dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple azo linkages and reactive chlorotriazine groups, makes it a critical precursor for synthesizing high-performance, colorfast dyes and pigments. This compound is essential for manufacturers in the textile, leather, and specialty chemical industries seeking to produce vivid, durable colors with excellent wash and light fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Serves as a key building block in the synthesis of high-grade reactive dyes for cotton, viscose, and other cellulose fibers.
• Textile Industry: Used in the production of dyes for exhaust, pad-batch, and continuous dyeing processes, offering strong covalent bonds with fibers.
• Leather Coloring: Employed in the manufacture of dyes for leather finishing, providing rich, penetrating colors.
• Paper Dyeing: Applicable in the production of dyes for specialty paper and paperboard requiring high color strength.
• Research & Development: Utilized in chemical R&D for creating novel chromophores and studying azo dye chemistry.
• Specialty Ink Formulation: Can be a component in the synthesis of pigments for certain high-performance inks.

Basic Information

Product Name	Pentasodium 4-amino-6-[[5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-2-sulphonatophenyl]azo]-3-[(2,5-disulphonatophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonate
CAS No.	68259-02-9
Molecular Formula	C31H17ClN12Na5O16S5
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 68259-02-9; C.I. Reactive Black 5 Intermediate; Pentasodium Salt of a Bis(azo) Reactive Compound; 4-Amino-6-({5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl}azo)-3-[(2,5-disulfophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic Acid, Pentasodium Salt; Azo Reactive Dye Precursor; Chlorotriazine-based Dye Intermediate; Polyazo Disulfonate Intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled 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 performance and stability.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
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
pH (1% Solution)	6.0 - 8.0

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