Description

1,3'-Bipyridinium,5'-[[4-[[7-[(1',2'-dihydro-6'-hydroxy-3,4-dimethyl-2'-oxo [1,3'-bipyridinium]-5'-yl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]azo]-1'- [3-(dimethylamino)propyl]-1',2'-oxo-, salt with 2-hydroxypropanoic acid is a complex, high-purity azo dye intermediate designed for advanced colorant synthesis. This compound is critical for producing specialized dyes with enhanced color fastness, solubility, and application performance. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries seeking to develop next-generation, high-value pigments.

Application

• Textile Dyeing: A key intermediate for synthesizing high-performance, wash-fast azo dyes for natural and synthetic fibers.
• Inkjet Inks: Used in the production of specialized colorants for high-resolution industrial and graphic arts inks.
• Functional Polymers: Acts as a chromophore monomer for creating light-absorbing or color-changing specialty polymers.
• Analytical Chemistry: Employed as a reagent or indicator in specific spectrophotometric and complexometric assays.
• Research & Development: Serves as a building block for novel dye and pigment research in academic and industrial labs.
• Liquid Crystal Displays (LCDs): Potential use in the synthesis of dyes for color filters in display technologies.

Basic Information

Item	Detail
Product Name	1,3'-Bipyridinium,5'-[[4-[[7-[(1',2'-dihydro-6'-hydroxy-3,4-dimethyl-2'-oxo [1,3'-bipyridinium]-5'-yl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]azo]-1'- [3-(dimethylamino)propyl]-1',2'-oxo-, salt with 2-hydroxypropanoic acid
CAS No.	89857-06-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	1,3'-Bipyridinium, 5'-[[4-[[7-[(1',2'-dihydro-6'-hydroxy-3,4-dimethyl-2'-oxo[1,3'-bipyridinium]-5'-yl)azo]-1-hydroxy-3-sulfo-2-naphthyl]azo]phenyl]azo]-1'-[3-(dimethylamino)propyl]-1',2'-dihydro-2'-oxo-, salt with 2-hydroxypropanoic acid (1:?); C.I. Reactive Red 238 (related class); Complex Azo Dye Intermediate; Lactate salt of a bipyridinium azo dye; 89857-06-7; 5'-[[4-[[7-[(1',2'-Dihydro-6'-hydroxy-3,4-dimethyl-2'-oxo[1,3'-bipyridinium]-5'-yl)azo]-1-hydroxy-3-sulfo-2-naphthyl]azo]phenyl]azo]-1'-[3-(dimethylamino)propyl]-1',2'-dihydro-2'-oxo-1,3'-bipyridinium 2-hydroxypropanoate
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analysis, including identity confirmation by spectroscopic methods and purity assessment by HPLC. A detailed Certificate of Analysis (COA) documenting all critical parameters is provided with every shipment 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm

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