Description

o-[Bis[4-[Ethyl[(3-Sulphophenyl)Methyl]Amino]Phenyl]Methyl]Benzenesulphonic Acid is a specialized organic sulfonic acid derivative, valued for its role as a key intermediate in the synthesis of high-performance dyes and functional chemicals. Its molecular structure, featuring multiple aromatic and sulfonic acid groups, makes it essential for creating compounds with specific color, solubility, and binding properties. This product is primarily needed by manufacturers in the dye and pigment, textile chemical, and advanced material synthesis industries.

Application

• Dye and Pigment Intermediate: A critical building block for the synthesis of acid dyes, reactive dyes, and other complex colorants.
• Textile Chemical Production: Used in manufacturing specialty chemicals for textile processing, such as leveling agents and dye fixatives.
• Functional Polymer Synthesis: Serves as a monomer or additive to introduce sulfonic acid groups into polymers, enhancing hydrophilicity and ion-exchange capacity.
• Photographic Chemical: Employed in the production of certain photographic chemicals and sensitizers.
• Research & Development: Used in academic and industrial R&D for developing new organic materials and studying sulfonation chemistry.

Basic Information

Product Name	o-[Bis[4-[Ethyl[(3-Sulphophenyl)Methyl]Amino]Phenyl]Methyl]Benzenesulphonic Acid
CAS No.	68155-73-7
Molecular Formula	C37H38N2O6S2
Molecular Weight	670.83 g/mol
Synonyms	Benzenesulfonic acid, o-[bis[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]methyl]-; 2,2'-((Phenylmethylene)bis(4,1-phenylene))bis((ethyl((3-sulfophenyl)methyl)azanediyl))bis(methanesulfonic acid) (alternative IUPAC); Dye Intermediate 68155-73-7; Sulfonated Triphenylmethane Derivative; Acid Dye Precursor; [Bis(4-(N-ethyl-N-(3-sulfobenzyl)amino)phenyl)methyl]benzenesulfonic acid
EINECS	Contact for details

Quality Control

Our o-[Bis[4-[Ethyl[(3-Sulphophenyl)Methyl]Amino]Phenyl]Methyl]Benzenesulphonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the precise requirements for advanced chemical synthesis.

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 sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Light yellow to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals	≤ 20 ppm

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