Description

2,4-Dihydro-4-[(2-Hydroxyphenyl)Azo]-5-Methyl-2-Phenyl-3H-Pyrazol-3-One is a high-purity azo pyrazolone derivative, valued for its role as a versatile chemical intermediate and colorant precursor. Its molecular structure makes it a critical component in the synthesis of specialized dyes and pigments, offering excellent color properties and stability. This compound is essential for manufacturers in the dye and pigment, fine chemical, and advanced material research sectors seeking reliable, high-quality intermediates for their production processes.

Application

• Dye and Pigment Intermediate: A key precursor for the synthesis of high-performance azo dyes and organic pigments, particularly for applications requiring yellow to orange hues.
• Fine Chemical Synthesis: Used as a specialized building block in the production of complex organic molecules for pharmaceuticals and agrochemical research.
• Analytical Chemistry: May serve as a reagent or a standard in chromatographic analysis and method development due to its distinct chemical signature.
• Material Science Research: Investigated for potential use in the development of functional materials, such as light-sensitive coatings or nonlinear optical materials.
• Textile Industry: Employed in the development of specialized colorants for synthetic and natural fibers.
• Ink Formulation: Used in the production of specialty inks where specific color fastness and chemical resistance are required.

Basic Information

Product Name	2,4-Dihydro-4-[(2-Hydroxyphenyl)Azo]-5-Methyl-2-Phenyl-3H-Pyrazol-3-One
CAS No.	10010-74-9
Molecular Formula	C₁₆H₁₄N₄O₂
Molecular Weight	294.31 g/mol
Synonyms	4-[(2-Hydroxyphenyl)azo]-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one; 5-Methyl-2-phenyl-4-(2-hydroxyphenylazo)-3-pyrazolone; 3-Pyrazolone, 4-[(2-hydroxyphenyl)azo]-5-methyl-2-phenyl-; C.I. 12710; Solvent Yellow 16 (related class); Azo Pyrazolone Derivative; Light Yellow 3G (trade name variant); 2-Hydroxybenzeneazopyrazolone
EINECS	233-024-5

Quality Control

Our 2,4-Dihydro-4-[(2-Hydroxyphenyl)Azo]-5-Methyl-2-Phenyl-3H-Pyrazol-3-One is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use as a high-grade intermediate. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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 room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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