Description

5-[[4'-[[2,4-Diamino-5-(Sodiosulfo)Phenyl]Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]-2-Hydroxy-3-Methylbenzoic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate characterized by its complex disazo structure. This compound is critically important for synthesizing high-value, colorfast dyes and pigments, particularly in applications requiring specific shades and superior fastness properties. It is primarily needed by manufacturers in the textile, leather, and specialty ink industries for producing high-performance colorants.

Application

• Textile Dyeing: A key intermediate for the synthesis of acid dyes and direct dyes used on wool, silk, nylon, and cotton fibers.
• Leather Coloring: Used in the production of dyes for imparting deep, uniform colors to leather goods with good light and rub fastness.
• Ink Manufacturing: Serves as a precursor for pigments in specialty printing inks, including inks for packaging and security applications.
• Paper Coloring: Employed in the manufacture of dyes for high-grade paper products where color consistency is essential.
• Research & Development: Used as a standard or building block in chemical research for developing new chromophores and functional dyes.
• Functional Dyes: Potential intermediate for dyes used in non-textile applications such as lasers, optical data storage, or biomedical staining.

Basic Information

Product Name	5-[[4'-[[2,4-Diamino-5-(Sodiosulfo)Phenyl]Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]-2-Hydroxy-3-Methylbenzoic Acid Sodium Salt
CAS No.	6405-93-2
Molecular Formula	C34H28N6Na2O7S
Molecular Weight	710.66 g/mol
Synonyms	Acid Red 114 (C.I. 23635); Sodium 5-[[4'-[[2,4-diamino-5-sulfophenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-3-methylbenzoate; 5-[(4'-[(2,4-Diamino-5-sulfophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl)azo]-2-hydroxy-3-methylbenzoic acid disodium salt; C.I. Acid Red 114; Disodium 5-[[4'-[(2,4-diamino-5-sulfophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-3-methylbenzoate; Mordant Red 19; Leather Fast Red B; Contact for details on additional trade names.
EINECS	229-074-2

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance processes.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Dark red to brown powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (as-is basis)
Moisture Content (KF)	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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