Description

3-Carboxy-1-[4-[(4-chloro-3-sulfophenyl)amino]-6-[[5-hydroxy-6-[(4-methoxy-2-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]-pyridinium, inner salt, potassium sodium salt is a high-purity, complex anionic azo dye intermediate. This compound is valued for its role in synthesizing specialized, high-performance dyes and pigments with excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and durable colors.

Application

• Textile Dyeing: A key intermediate for producing reactive and direct dyes for cotton, wool, and synthetic fibers.
• Ink Formulation: Used in the manufacture of high-quality printing inks, including those for packaging and security applications.
• Specialty Pigments: Serves as a precursor for creating complex organic pigments used in automotive and industrial coatings.
• Research & Development: Employed in chemical research for developing new chromophores and functional dyes.
• Paper Coloring: Applicable in the production of dyes for high-grade paper and specialty paper products.
• Leather Finishing: Used in dye formulations for achieving deep, uniform colors on leather goods.

Basic Information

Item	Details
Product Name	3-Carboxy-1-[4-[(4-chloro-3-sulfophenyl)amino]-6-[[5-hydroxy-6-[(4-methoxy-2-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]-pyridinium, inner salt, potassium sodium salt
CAS No.	109125-54-4
Molecular Formula	C31H18ClKN8Na2O13S3
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 (Potassium Sodium Salt); C.I. Reactive Black 5; Remazol Black B; 3-Carboxy-1-(4-((4-chloro-3-sulfophenyl)amino)-6-((5-hydroxy-6-((4-methoxy-2-sulfophenyl)azo)-7-sulfo-2-naphthyl)amino)-1,3,5-triazin-2-yl)pyridinium hydroxide inner salt potassium sodium salt; Potassium sodium 3-carboxy-1-[4-[(4-chloro-3-sulfophenyl)amino]-6-[[5-hydroxy-6-[(4-methoxy-2-sulfophenyl)azo]-7-sulfo-2-naphthyl]amino]-1,3,5-triazin-2-yl]pyridinium inner salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and compliance with industry specifications. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee it meets your precise formulation requirements.

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 opening to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals	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.