Description

2-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo]Benzoic Acid is a high-purity azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its precise molecular structure, which enables the synthesis of specialized dyes with excellent lightfastness and chemical resistance. This compound is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking reliable intermediates for high-performance pigment and dye production.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Key component in manufacturing high-performance inks for printing and packaging applications.
• Used in the production of specialty colorants for plastics and polymers.
• Intermediate for reactive dyes applied to cotton and other cellulose fibers.
• Research and development of novel functional dyes with specific optical properties.
• Potential use in the formulation of biological stains and analytical reagents.

Basic Information

Product Name	2-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo]Benzoic Acid
CAS No.	54480-58-9
Molecular Formula	C17H14N4O5S
Molecular Weight	386.38 g/mol
Synonyms	Benzoic acid, 2-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]-; 2-[(4,5-Dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl)azo]benzoic acid; Acid Yellow 117 (C.I. 24820); C.I. Acid Yellow 117; 4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-4-[(2-carboxyphenyl)azo]-3-methyl-1H-pyrazole; 1-(4-Sulfophenyl)-3-methyl-4-(2-carboxyphenylazo)-5-pyrazolone; Azo dye intermediate PY-117; PY-117
EINECS	Contact for details

Quality Control

Our production of 2-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo]Benzoic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. Certificates of Analysis (COA) documenting all critical specifications 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, 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 each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in alkaline aqueous solutions

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