Description

Sodium p-[4,5-Dihydro-3-Methyl-4-[[3-[(p-Tolylamino)Sulphonyl]-p-Tolyl]Azo]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble azo dye intermediate and specialty chemical. It is valued for its precise molecular structure, which is critical for synthesizing high-performance dyes and pigments with excellent color fastness and stability. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking consistent quality for their production processes.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-grade, water-soluble azo dyes for textiles and fibers.
• Specialty Ink Formulations: Used in the production of inks for digital printing, packaging, and security applications requiring specific chromatic properties.
• Functional Pigment Synthesis: Employed in the manufacture of organic pigments for plastics, paints, and industrial coatings.
• Research & Development: Serves as a standard or reagent in chemical research, particularly in dye chemistry and material science.
• Analytical Chemistry: Can be utilized as a colorimetric agent or tracer in specific laboratory and diagnostic applications.

Basic Information

Product Name	Sodium p-[4,5-Dihydro-3-Methyl-4-[[3-[(p-Tolylamino)Sulphonyl]-p-Tolyl]Azo]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	72828-87-6
Molecular Formula	C31H27N5NaO6S2
Molecular Weight	652.69 g/mol
Synonyms	Sodium 4-[4,5-dihydro-3-methyl-4-[[3-[(4-methylphenyl)sulfamoyl]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; Benzenesulfonic acid, 4-[4,5-dihydro-3-methyl-4-[[3-[(4-methylphenyl)sulfamoyl]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]-, sodium salt; Azo dye intermediate 72828-87-6; Water-soluble pyrazolone azo compound; Sodium salt of a sulfonated azo pyrazolone dye
EINECS	Contact for details

Quality Control

Our production of Sodium p-[4,5-Dihydro-3-Methyl-4-[[3-[(p-Tolylamino)Sulphonyl]-p-Tolyl]Azo]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to verify identity, strength, and impurity profiles. Certificates of Analysis (COA) documenting all critical specifications are provided to guarantee the material meets your technical requirements.

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, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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