Description

1-(2,5-Dichlorophenyl)-3-Methyl-4-[(o-Nitrophenyl)Azo]-2-Pyrazolin-5-One is a specialized azo pyrazolone derivative, a chemical class known for its strong chromophoric properties. This compound is valued for its ability to impart vivid and stable coloration, making it a critical component in high-performance applications. It is primarily sought by manufacturers in the pigments and dyes, advanced materials, and specialty chemical synthesis sectors for creating custom colorants and functional intermediates.

Application

• High-Performance Pigments: Used as a key intermediate in the synthesis of organic pigments for plastics, coatings, and inks requiring excellent color strength and stability.
• Specialty Dyes: Serves as a precursor for developing azo dyes with specific shades for technical textiles and non-textile applications.
• Functional Material Synthesis: Employed in research and production of advanced materials where its specific molecular structure contributes to optical or electronic properties.
• Chemical Intermediate: Acts as a building block in multi-step organic synthesis for pharmaceuticals, agrochemicals, or other fine chemicals.
• Analytical Chemistry: Potential use as a chromogenic reagent or standard in analytical methods due to its distinct spectroscopic signature.

Basic Information

Product Name	1-(2,5-Dichlorophenyl)-3-Methyl-4-[(o-Nitrophenyl)Azo]-2-Pyrazolin-5-One
CAS No.	29330-49-2
Molecular Formula	C16H11Cl2N5O3
Molecular Weight	392.20 g/mol
Synonyms	1-(2,5-Dichlorophenyl)-3-methyl-4-[(2-nitrophenyl)azo]-5-pyrazolone; 4-[(2-Nitrophenyl)azo]-1-(2,5-dichlorophenyl)-3-methyl-1H-pyrazol-5-ol; 29330-49-2; Azo Pyrazolone Derivative; 1H-Pyrazol-5-one, 1-(2,5-dichlorophenyl)-4-[(2-nitrophenyl)azo]-3-methyl-; o-Nitrophenylazo pyrazolone derivative; C.I. Pigment Yellow (Related structure)
EINECS	Contact for details

Quality Control

Our production of 1-(2,5-Dichlorophenyl)-3-Methyl-4-[(o-Nitrophenyl)Azo]-2-Pyrazolin-5-One adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	Orange to red powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Standard Grade)
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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