Description

4-[4-[Ethyl(m-Sulphobenzyl)Amino]Anilino]-3,5-Dinitrobenzenesulphonic Acid, Sodium Salt is a specialized anionic dye intermediate and functional chemical compound. This product is valued for its role in synthesizing high-performance dyes and pigments, particularly for applications requiring specific color fastness and solubility properties. It is primarily utilized by manufacturers in the textile dyeing, ink formulation, and specialty chemical synthesis industries.

Application

• Textile Dye Intermediate: A key precursor in the synthesis of acid dyes and reactive dyes for nylon, wool, and silk.
• Ink and Pigment Manufacturing: Used in the production of colorants for inks, including those for packaging and security printing.
• Paper Coloring: Employed in the manufacture of dyes for specialty paper products.
• Leather Dyeing: Serves as an intermediate for dyes used in the leather tanning and finishing industry.
• Research & Development: A valuable building block in organic synthesis for developing new chromophores and functional materials.
• Analytical Reagents: Potential use as a staining agent or indicator in specific analytical chemistry applications.

Basic Information

Product Name	4-[4-[Ethyl(m-Sulphobenzyl)Amino]Anilino]-3,5-Dinitrobenzenesulphonic Acid, Sodium Salt
CAS No.	93941-84-5
Molecular Formula	C22H20N5NaO10S2
Molecular Weight	593.54 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]amino]-3,5-dinitro-, sodium salt (1:1); Sodium 4-({4-[ethyl(3-sulfobenzyl)amino]phenyl}amino)-3,5-dinitrobenzenesulfonate; Acid Yellow 219 (C.I. 13995); C.I. Acid Yellow 219; Yellow 219; 4-[[4-[Ethyl[(3-sulfophenyl)methyl]amino]phenyl]amino]-3,5-dinitrobenzenesulfonic acid sodium salt; Dye Intermediate for Acid Yellow 219
EINECS	Contact for details

Quality Control

Our production of 4-[4-[Ethyl(m-Sulphobenzyl)Amino]Anilino]-3,5-Dinitrobenzenesulphonic Acid, Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, protect from moisture and store under dry, inert conditions if possible. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Solubility (1% in Water)	Clear, yellow solution
Heavy Metals (as Pb)	≤ 20 ppm

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