Description

4,4'-Butylidenebis[1,2-Dihydro-1,5-Dimethyl-2-Phenyl-3H-Pyrazol-3-One] is a high-purity, specialized chemical intermediate belonging to the pyrazolone class. This compound is valued for its role as a versatile building block in the synthesis of more complex molecules, particularly in the pharmaceutical and fine chemical sectors. Industrial buyers and R&D professionals in pharmaceutical development, agrochemical research, and advanced material science rely on this consistent, high-quality material for critical synthetic pathways.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those with anti-inflammatory or analgesic properties.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, leveraging its heterocyclic structure.
• Fine Chemical Production: Serves as a building block for dyes, pigments, and other performance chemicals requiring specific molecular architectures.
• Research & Development: Employed in academic and industrial labs for methodological studies and the creation of new chemical entities.
• Polymer Additive Precursor: Can be utilized in the development of specialized additives for plastics and coatings.

Basic Information

Product Name	4,4'-Butylidenebis[1,2-Dihydro-1,5-Dimethyl-2-Phenyl-3H-Pyrazol-3-One]
CAS No.	1461-17-2
Molecular Formula	C26H28N4O2
Molecular Weight	428.53 g/mol
Synonyms	4,4'-Butylidenebis(1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one); 1,1'-Butylidenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one); Bumadizone Calcium Impurity; Bumadizone Related Compound A; 4,4'-(Butane-1,1-diyl)bis(1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one); Pyrazolone Derivative (1461-17-2); Bis(pyrazolone) derivative
EINECS	Contact for details

Quality Control

Our 4,4'-Butylidenebis[1,2-Dihydro-1,5-Dimethyl-2-Phenyl-3H-Pyrazol-3-One] is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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