Description

2-Dimethylamino-5-Phenyldiazenyl-Benzenesulfonic Acid is a specialized organic compound featuring a diazenyl (azo) linkage and a sulfonic acid group, making it a valuable intermediate for the synthesis of dyes and functional materials. Its molecular structure is engineered to provide strong chromophoric properties and water solubility, which is critical for high-performance applications. This chemical is primarily sought by manufacturers in the dye and pigment, textile, and advanced material research sectors.

Application

• Dye and Pigment Intermediate: A key precursor for synthesizing azo dyes, particularly acid dyes and reactive dyes used for coloring textiles like wool, silk, and nylon.
• Textile Chemical Production: Used in the manufacture of specialized dyeing auxiliaries and colorants that require excellent fastness and solubility.
• Research & Development: Serves as a building block in organic synthesis for creating novel chromophores and functional molecules in material science.
• Analytical Reagent: Potential use as a staining agent or indicator in specific biochemical and analytical chemistry applications.
• Functional Material Synthesis: Can be incorporated into polymers or coatings to impart specific optical or surface-active properties.

Basic Information

Product Name	2-Dimethylamino-5-Phenyldiazenyl-Benzenesulfonic Acid
CAS No.	125165-71-1
Molecular Formula	C14H15N3O3S
Molecular Weight	305.35 g/mol
Synonyms	Benzenesulfonic acid, 2-(dimethylamino)-5-(2-phenyldiazenyl)-; 5-[(E)-Phenyldiazenyl]-N,N-dimethyl-2-aminobenzenesulfonic acid; 2-Dimethylamino-5-(phenyldiazenyl)benzenesulfonic acid; Azo dye intermediate AS-D; Acid Dye Intermediate; C.I. Acid Orange 156 precursor; (E)-4-(Dimethylamino)-4'-(sulfophenyl)azobenzene
EINECS	Contact for details

Quality Control

Every batch of 2-Dimethylamino-5-Phenyldiazenyl-Benzenesulfonic Acid is produced under a strict quality management system. We ensure compliance with relevant industry standards through rigorous in-process and final testing. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your production 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, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Orange 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 (as Pb)	≤ 20 ppm

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