Description

2-[3-[3-[1,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-4H-Pyrazol-4-Ylidene]-5,5-Dimethylcyclohex-1-En-1-Yl]Prop-2-Enylidene]-2H-Benzoxazole-3-Propylsulphonic Acid is a high-purity, sulfonated organic dye intermediate known for its excellent chromophoric properties and water solubility. This compound is critical for achieving vibrant, stable colors in demanding industrial applications where lightfastness and chemical compatibility are paramount. It is primarily utilized by manufacturers of specialty dyes, pigments, and advanced functional materials for textiles, inks, and coatings.

Application

• Reactive Dye Synthesis: A key intermediate for producing high-performance reactive dyes for cotton and cellulose fiber dyeing.
• Textile Colorants: Used in the formulation of bright, wash-fast dyes for the textile industry.
• Inkjet Inks: Provides colorant properties for high-quality, water-based digital printing inks.
• Functional Pigments: Serves as a precursor for creating specialized pigments used in coatings and plastics.
• Laser Dyes & Optical Applications: Potential use in the synthesis of dyes for tunable lasers and other photonic devices due to its complex conjugated structure.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Item	Detail
Product Name	2-[3-[3-[1,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-4H-Pyrazol-4-Ylidene]-5,5-Dimethylcyclohex-1-En-1-Yl]Prop-2-Enylidene]-2H-Benzoxazole-3-Propylsulphonic Acid
CAS No.	63059-65-4
Molecular Formula	C31H31N3O7S2
Molecular Weight	621.72 g/mol
Synonyms	Acid Yellow 219; C.I. 480190; 2-[3-[3-[1,5-Dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene]-5,5-dimethyl-1-cyclohexen-1-yl]-2-propenylidene]-2H-benzoxazole-3-propylsulfonic acid; 2H-Benzoxazole-3-propylsulfonic acid, 2-[3-[3-[1,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene]-5,5-dimethyl-1-cyclohexen-1-yl]-2-propenylidene]-; Yellow 219; Reactive Yellow Dye Intermediate; Sulfonated Pyrazolone-Benzoxazole Dye
EINECS	Contact for details

Quality Control

Our production of 2-[3-[3-[1,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-4H-Pyrazol-4-Ylidene]-5,5-Dimethylcyclohex-1-En-1-Yl]Prop-2-Enylidene]-2H-Benzoxazole-3-Propylsulphonic Acid adheres to a rigorous quality management system. Every batch is analyzed to ensure it meets stringent specifications for purity, color strength, and impurity profile. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely Soluble

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