Description

2-[[[2,5-Dichloro-4-[2-Methyl-4-(Diethylamino)Phenylazo]Phenyl]Sulfonyl]Amino]Ethanesulfonic Acid is a specialized azo dye intermediate with a complex sulfonated structure, offering high reactivity and colorant properties. This compound is valued for its role in synthesizing high-performance dyes and pigments with excellent lightfastness and washfastness characteristics. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced color formulations.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics requiring specific color strength and stability.
• Functional Dye Synthesis: Serves as a precursor for dyes used in non-textile applications, such as laser dyes, sensitizers, and functional materials.
• Research & Development: Employed in chemical R&D for exploring novel chromophores and advanced material science applications.
• Analytical Chemistry: Can be used as a standard or reagent in specific analytical and chromatographic methods.

Basic Information

Item	Detail
Product Name	2-[[[2,5-Dichloro-4-[2-Methyl-4-(Diethylamino)Phenylazo]Phenyl]Sulfonyl]Amino]Ethanesulfonic Acid
CAS No.	36783-07-0
Molecular Formula	C19H23Cl2N5O5S2
Molecular Weight	528.45 g/mol
Synonyms	2-({[2,5-Dichloro-4-(2-methyl-4-(diethylamino)phenyl)diazenyl]phenyl}sulfonylamino)ethanesulfonic acid; Acid Red 337 (related dye class); C.I. 17200; Azo dye intermediate; Sulfonated azo compound; Reactive dye precursor; 2-Aminoethanesulfonic acid derivative; N-[2-(Sulfooxy)ethyl]-2,5-dichloro-4-[2-methyl-4-(diethylamino)phenyl]diazenyl]benzenesulfonamide
EINECS	Contact for details

Quality Control

Our production of 2-[[[2,5-Dichloro-4-[2-Methyl-4-(Diethylamino)Phenylazo]Phenyl]Sulfonyl]Amino]Ethanesulfonic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet the specifications required for high-end synthesis. Certificates of Analysis (COA) documenting all critical parameters are provided with every 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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Standard Grade)
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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