Description

1,3,5Pyrazolone is a versatile heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique pyrazolone core structure makes it a valuable intermediate for creating high-performance materials and active pharmaceutical ingredients. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop innovative products with enhanced properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various drugs, including analgesics, antipyretics, and anti-inflammatory agents.
• Agrochemical Synthesis: Used in the production of certain herbicides, pesticides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as an intermediate for creating azo dyes and other complex colorants.
• Chemical Research & Development: Serves as a fundamental scaffold for novel compound libraries in medicinal and material chemistry.
• Photographic Chemicals: Employed in the synthesis of certain compounds used in photographic development.
• Coordination Chemistry: Functions as a ligand for metal complexes in catalytic and material science applications.

Basic Information

Product Name	1,3,5Pyrazolone
CAS No.	137-44-0
Molecular Formula	C3H4N2O
Molecular Weight	84.08 g/mol
Synonyms	1H-Pyrazol-5(2H)-one; 5-Pyrazolone; 2,4-Dihydro-3H-pyrazol-3-one; 1,2-Dihydro-3H-pyrazol-3-one; 3-Pyrazolin-5-one; Pyrazol-5-one; 5-Hydroxypyrazole; 3-Oxo-δ²-pyrazoline
EINECS	205-294-8

Quality Control

Our 1,3,5Pyrazolone is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC/GC purity, residual solvent analysis, and identification by FTIR and NMR. A Certificate of Analysis (COA) is supplied with each shipment, detailing all relevant specifications. Our quality protocols are designed to meet the stringent requirements of pharmaceutical and fine chemical applications.

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 reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	165 - 170 °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.