Description

4-[3-Ethoxy-4-[4-[n-Ethyl-n-(2-Sulfoethyl)Amino]-2-Methylbenzylidene]-5-Oxo-2-Pyrazolin-1-Yl]Benzenesulfonic Acid Disodium Salt is a high-purity, water-soluble anionic dye intermediate essential for producing vibrant and stable colorants. Its molecular structure, featuring dual sulfonate groups, provides excellent solubility and binding affinity, making it a critical component for advanced dye synthesis. This compound is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to develop high-performance dyes and pigments.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Textile Colorant Production: Used in manufacturing dyes that offer excellent wash-fastness and light-fastness properties for the textile industry.
• Inkjet Ink Formulations: Serves as a precursor for colorants used in high-resolution digital printing inks, ensuring color vividness and stability.
• Specialty Pigment Synthesis: Employed in the production of complex organic pigments for plastics, coatings, and automotive paints.
• Laboratory & Research: Used as a standard or research chemical in analytical chemistry and dye development studies.
• Functional Dye Applications: Potential use in the development of dyes for non-textile applications such as sensors or optical materials.

Basic Information

Item	Detail
Product Name	4-[3-Ethoxy-4-[4-[n-Ethyl-n-(2-Sulfoethyl)Amino]-2-Methylbenzylidene]-5-Oxo-2-Pyrazolin-1-Yl]Benzenesulfonic Acid Disodium Salt
CAS No.	112406-67-4
Molecular Formula	C24H27N3Na2O8S2
Molecular Weight	603.59 g/mol
Synonyms	Reactive Dye Intermediate 112406-67-4; Benzenesulfonic acid, 4-[3-ethoxy-4-[4-[ethyl(2-sulfoethyl)amino]-2-methylbenzylidene]-5-oxo-2-pyrazolin-1-yl]-, disodium salt; C.I. Reactive Yellow; Disodium 4-(3-ethoxy-4-{4-[ethyl(2-sulfoethyl)amino]-2-methylbenzylidene}-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonate; Anionic Pyrazolone Dye Intermediate; 4-(3-Ethoxy-4-{4-[N-ethyl-N-(2-sulfoethyl)amino]-2-methylbenzylidene}-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of 4-[3-Ethoxy-4-[4-[n-Ethyl-n-(2-Sulfoethyl)Amino]-2-Methylbenzylidene]-5-Oxo-2-Pyrazolin-1-Yl]Benzenesulfonic Acid Disodium Salt adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for industrial synthesis. The material undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. Certificates of Analysis (COA) documenting identity, purity, and related substances are provided with each shipment to support your quality assurance and regulatory needs.

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

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (1% in Water)	Clear, yellow solution

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