Description

1-[4-[[3-(Acetylamino)-4-[(3,6,8-trisulfo-2-naphthalenyl)azo]phenyl]amino]-6-[[4-[(4-sulfophenyl)azo]phenyl]amino]-1,3,5-triazin-2-yl]-3-carboxy-pyridinium, hydroxide, potassium sodium salt is a high-performance, polyfunctional azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulfonate groups and a triazine core, provides exceptional binding affinity and chromogenic properties. This compound is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries for synthesizing advanced, wash-fast, and light-stable dyes and pigments.

Application

• Textile Dyeing: A key intermediate for producing high-quality, reactive, and direct dyes for cotton, wool, and nylon, offering excellent color yield and fastness properties.
• Ink Manufacturing: Used in the synthesis of pigments for inks, including those for digital textile printing and security applications, due to its vivid color potential and stability.
• Leather Coloring: Employed in the production of dyes for leather finishing, providing deep, uniform shades with good adhesion.
• Paper Coloring: Serves as a precursor for dyes used in specialty paper products, including decorative and packaging papers.
• Research & Development: Utilized in chemical R&D for developing new chromophores and studying structure-property relationships in dye chemistry.
• Specialty Coatings: An intermediate for creating colored polymers and coatings where specific optical properties are required.

Basic Information

Product Name	1-[4-[[3-(Acetylamino)-4-[(3,6,8-trisulfo-2-naphthalenyl)azo]phenyl]amino]-6-[[4-[(4-sulfophenyl)azo]phenyl]amino]-1,3,5-triazin-2-yl]-3-carboxy-pyridinium, hydroxide, potassium sodium salt
CAS No.	365999-65-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Black 5 (Potassium Sodium Salt); Reactive Black 5; Remazol Black B; Polyazo dye intermediate; 1-[4-[[3-(Acetylamino)-4-[(3,6,8-trisulfo-2-naphthalenyl)azo]phenyl]amino]-6-[[4-[(4-sulfophenyl)azo]phenyl]amino]-1,3,5-triazin-2-yl]pyridinium-3-carboxylate, hydroxide, potassium sodium salt; Potassium sodium 1-[4-[[3-acetamido-4-[(3,6,8-trisulfo-2-naphthyl)azo]phenyl]amino]-6-[[4-[(4-sulfophenyl)azo]phenyl]amino]-1,3,5-triazin-2-yl]pyridinium-3-carboxylate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical methods including HPLC for purity and assay, spectrophotometry for color strength, and tests for ionic content. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100% ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Completely soluble
pH (1% Solution)	6.0 - 8.0
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.