Description

4-Amino-1,5-Dimethyl-2-Phenyl-1H-Pyrazol-3(2H)-One is a versatile heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its value lies in its unique pyrazolone core structure, which is essential for creating molecules with specific biological and chemical activities. This intermediate is primarily needed by pharmaceutical R&D teams and fine chemical manufacturers developing active ingredients and specialty dyes.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides.
• Dye and Pigment Manufacturing: Serves as a core structure for producing azo dyes and other complex colorants.
• Research & Development: Employed in academic and industrial labs for heterocyclic chemistry studies and new compound library generation.
• Fine Chemical Production: Acts as a building block for various specialty chemicals requiring a functionalized pyrazolone moiety.

Basic Information

Product Name	4-Amino-1,5-Dimethyl-2-Phenyl-1H-Pyrazol-3(2H)-One
CAS No.	198-37-8
Molecular Formula	C11H13N3O
Molecular Weight	203.24 g/mol
Synonyms	4-Amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one; 4-Amino-1,5-dimethyl-2-phenyl-3-pyrazolone; 4-Amino-2-phenyl-1,5-dimethyl-3-pyrazolone; 4-Aminoantipyrine; Ampyrone; 1,5-Dimethyl-2-phenyl-4-amino-3-pyrazolone; 4-Amino-1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one
EINECS	205-896-7

Quality Control

Our 4-Amino-1,5-Dimethyl-2-Phenyl-1H-Pyrazol-3(2H)-One is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. The product is light-sensitive and should be stored away from light as indicated.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	107 - 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.