Description

2,2'-[[3-Methyl-4-[[4-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]Phenyl]Imino]Diethanol Bis(Hydrogen Sulfate) is a specialized reactive dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance, water-soluble dyes with excellent color fastness and application properties. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Reactive Dye Synthesis: A key precursor for manufacturing fiber-reactive dyes used in cotton, wool, and nylon coloration.
• Textile Printing and Dyeing: Imparts bright, wash-fast shades in textile applications requiring high wet-fastness.
• Inkjet Ink Formulation: Used in the production of high-quality pigments for industrial and commercial inkjet printing.
• Leather Dyeing: Employed in the formulation of dyes for achieving consistent and deep coloration on leather substrates.
• Paper Coloring: Suitable for specialty paper grades requiring specific, stable colorants.
• Research & Development: Serves as a building block in chemical research for developing new chromophores and functional dyes.

Basic Information

Product Name	2,2'-[[3-Methyl-4-[[4-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]Phenyl]Imino]Diethanol Bis(Hydrogen Sulfate)
CAS No.	75113-51-8
Molecular Formula	C19H25N3O13S3
Molecular Weight	599.60 g/mol
Synonyms	Reactive Dye Intermediate 75113-51-8; 2,2'-[[3-Methyl-4-[(4-((2-Sulfooxyethyl)sulfonyl)phenyl)azo]phenyl]imino]bis(ethanol) bis(hydrogen sulfate); Bis(2-hydroxyethyl)amino Azo Dye Sulfate Ester; Azo Dye Sulfonic Acid Ester Intermediate; C.I. Reactive Red Precursor; 1,3-Benzenediol, 4-[(4-((2-sulfooxyethyl)sulfonyl)phenyl)azo]-2-methyl-, bis(hydrogen sulfate) (ester); 75113-51-8 Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance processes.

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	Brown to dark brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
Heavy Metals (as Pb)	≤ 20 ppm
Sulfate Ash	≤ 0.5%
Solubility (in Water)	Clear solution

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