Description

1,3-Dimethyl-5-Pyrazolone is a versatile heterocyclic organic compound belonging to the pyrazolone class. This chemical serves as a crucial intermediate in the synthesis of pharmaceuticals, agrochemicals, and dyes, valued for its reactive lactam and methylene groups. Key industries that rely on this high-purity intermediate include pharmaceutical manufacturing, agrochemical production, and specialty chemical research and development.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of various active pharmaceutical ingredients (APIs), particularly analgesics and anti-inflammatory agents.
• Agrochemical Synthesis: Used in the production of certain pesticides and herbicides, leveraging its heterocyclic structure.
• Dye and Pigment Manufacturing: Acts as a precursor for azo dyes and other colorants, contributing to chromophore development.
• Chemical Research & Development: Employed as a versatile reagent in organic synthesis for constructing complex heterocyclic frameworks.
• Photographic Chemicals: Can be utilized in the synthesis of certain compounds used in photographic development processes.
• Polymer Additives: Investigated for use in the production of specialty polymers and as a potential stabilizer or modifier.

Basic Information

Product Name	1,3-Dimethyl-5-Pyrazolone
CAS No.	2749-59-9
Molecular Formula	C5H8N2O
Molecular Weight	112.13 g/mol
Synonyms	1,3-Dimethyl-2-pyrazolin-5-one; 1,3-Dimethyl-5-pyrazolone; 1,3-Dimethyl-1H-pyrazol-5(4H)-one; 5-Pyrazolone, 1,3-dimethyl-; Antipyrinone; NSC 66400; Dimethylpyrazolone; 2,3-Dimethyl-5-pyrazolone (common misnomer)
EINECS	220-401-4

Quality Control

Our 1,3-Dimethyl-5-Pyrazolone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards for use in sensitive applications like pharmaceutical synthesis. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment and is available upon request.

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, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	127 - 131 °C
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.