Description

Pentasodium 4-Amino-6-[[3-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-4-Sulphonatophenyl]Azo]-3-[(2,5-Disulphonatophenyl)Azo]-5-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, reactive dye intermediate and specialty chemical. This compound is valued for its ability to form covalent bonds with substrates, providing excellent color fastness and wash resistance in demanding applications. It is primarily required by manufacturers in the textile, leather, and specialty paper industries for producing high-performance dyes and pigments.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-quality fiber-reactive dyes, particularly for cotton and other cellulosic fibers.
• Textile Coloration: Used in the production of dyes that offer superior brightness, wet fastness, and lightfastness for textiles.
• Leather Dyeing: Employed in formulating specialized dyes for leather goods, ensuring deep, uniform, and durable coloration.
• Paper and Pulp Coloring: Suitable for creating colorants for specialty papers requiring high stability and color retention.
• Ink Formulation: Can be utilized in the synthesis of pigments for certain types of industrial and printing inks.
• Research & Development: Serves as a valuable building block in chemical R&D for developing new chromophores and functional dyes.

Basic Information

Product Name	Pentasodium 4-Amino-6-[[3-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-4-Sulphonatophenyl]Azo]-3-[(2,5-Disulphonatophenyl)Azo]-5-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	73398-43-3
Molecular Formula	C31H14Cl2N10Na5O19S5
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 Precursor; C.I. Reactive Black 5 Intermediate; Pentasodium 4-Amino-6-[[3-[(4,6-Dichloro-1,3,5-Triazin-2-yl)amino]-4-sulfophenyl]azo]-3-[(2,5-disulfophenyl)azo]-5-hydroxynaphthalene-2,7-disulfonate; 4-Amino-6-[[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfonatophenyl]azo]-3-[(2,5-disulfonatophenyl)azo]-5-hydroxynaphthalene-2,7-disulfonate, pentasodium salt; Azo dye intermediate 73398-43-3; Tetrasodium/Trisodium salt variants may exist.
EINECS	Contact for details

Quality Control

Our Pentasodium 4-Amino-6-[[3-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-4-Sulphonatophenyl]Azo]-3-[(2,5-Disulphonatophenyl)Azo]-5-Hydroxynaphthalene-2,7-Disulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, reactivity, and performance. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and color strength 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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90% (or as per grade)
Moisture Content	Max. 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm

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