Description

2,5-Dichloro-4-[[4-(Diethylamino)-o-Tolyl]Azo]Benzenesulphonic Acid is a specialized azo dye intermediate known for its distinct chromophoric properties. This compound is critical for synthesizing high-value, color-stable pigments and dyes used in demanding industrial applications. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, durable colors.

Application

• Primary intermediate for the synthesis of azo disperse dyes and pigments.
• Key component in manufacturing colorants for synthetic fibers such as polyester and nylon.
• Used in the production of printing inks for high-resolution applications.
• Employed in formulating industrial coatings and paints requiring specific color fastness.
• Potential use as a chemical reagent in analytical and research chemistry.
• Intermediate for specialty dyes used in plastics and polymer coloration.

Basic Information

Product Name	2,5-Dichloro-4-[[4-(Diethylamino)-o-Tolyl]Azo]Benzenesulphonic Acid
CAS No.	56125-08-7
Molecular Formula	C17H18Cl2N4O3S
Molecular Weight	429.32 g/mol
Synonyms	2,5-Dichloro-4-[(4-(diethylamino)-2-methylphenyl)diazenyl]benzenesulfonic acid; C.I. Disperse Yellow 119; Disperse Yellow 119; Benzenesulfonic acid, 2,5-dichloro-4-[[4-(diethylamino)-2-methylphenyl]azo]-; 4-[[4-(Diethylamino)-2-methylphenyl]azo]-2,5-dichlorobenzenesulfonic acid; 2,5-Dichloro-4-((4-(diethylamino)-o-tolyl)azo)benzenesulfonic acid; Azo dye intermediate YA-119
EINECS	Contact for details

Quality Control

Our 2,5-Dichloro-4-[[4-(Diethylamino)-o-Tolyl]Azo]Benzenesulphonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

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.