Description

1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One is a versatile heterocyclic organic compound that serves as a key intermediate in advanced chemical synthesis. Its value lies in its unique pyrazolone core, which is functionalized to enable precise molecular construction in high-value applications. This product is essential for research and development laboratories, pharmaceutical manufacturers, and agrochemical companies seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those targeting anti-inflammatory or analgesic pathways.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its chlorophenyl moiety.
• Chemical Research & Development: Serves as a versatile scaffold for organic chemists exploring new heterocyclic compounds and reaction methodologies.
• Dye & Pigment Intermediate: Employed in the synthesis of specialized colorants and functional dyes due to its conjugated system.
• Material Science: Investigated as a precursor or additive for creating polymers with specific thermal or optical properties.

Basic Information

Product Name	1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One
CAS No.	13024-90-3
Molecular Formula	C10H9ClN2O
Molecular Weight	208.64 g/mol
Synonyms	3-Methyl-1-(4-chlorophenyl)-5-pyrazolone; 1-(p-Chlorophenyl)-3-methyl-5-pyrazolone; 4-Chlorophenyl-3-methyl-5-pyrazolone; 5-Pyrazolone, 1-(4-chlorophenyl)-3-methyl-; 3-Methyl-1-(4'-chlorophenyl)-2-pyrazolin-5-one; Antipyrine, 4'-chloro-3-methyl-; p-Chloro-3-methyl-1-phenyl-5-pyrazolone
EINECS	235-889-8

Quality Control

Our 1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality for your critical processes.

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 and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	108°C - 112°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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