Description

2-[[4-[(4-Amino-5-Sulpho-1-Naphthyl)Azo]-7-Sulpho-1-Naphthyl]Azo]Benzene-1,4-Disulphonic Acid, Lithium Sodium Salt is a high-purity, water-soluble azo dye intermediate and specialty chemical. It is valued for its role in synthesizing complex, high-performance dyes and pigments, particularly for demanding applications requiring specific color properties and stability. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to develop advanced colorants.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-value, polyazo direct and reactive dyes for textiles, especially cotton and cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, plastics, and high-quality industrial coatings.
• Liquid Crystal Dyes (LCD): Potential application as a precursor for dyes used in display technologies due to its specific chromophore structure.
• Analytical Chemistry Reagent: Can serve as a complexometric indicator or a standard in chromatographic analysis due to its distinct UV-Vis absorption.
• Research & Development: Utilized in academic and industrial R&D for developing new functional dyes and studying azo coupling reactions.

Basic Information

Item	Details
Product Name	2-[[4-[(4-Amino-5-Sulpho-1-Naphthyl)Azo]-7-Sulpho-1-Naphthyl]Azo]Benzene-1,4-Disulphonic Acid, Lithium Sodium Salt
CAS No.	83399-86-4
Molecular Formula	C26H16LiN5NaO12S4
Molecular Weight	~781.7 g/mol
Synonyms	Lithium Sodium Salt of Acid Black 234; C.I. 30336; 1,5-Naphthalenedisulfonic acid, 2,2'-[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, lithium sodium salt; Acid Black 234 Lithium Sodium Salt; Azo dye intermediate 83399-86-4; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized, coupled with 4,4'-diaminobiphenyl-2,2'-disulfonic acid, lithium sodium complex; Direct Black 234 (Lithium Sodium Salt)
EINECS	Contact for details

Quality Control

Our production of 2-[[4-[(4-Amino-5-Sulpho-1-Naphthyl)Azo]-7-Sulpho-1-Naphthyl]Azo]Benzene-1,4-Disulphonic Acid, Lithium Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment.

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 handling properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF Titration)	≤ 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.