Description

4-Bromoantipyrine is a versatile brominated heterocyclic compound that serves as a critical intermediate in advanced organic synthesis. Its value lies in providing a reactive bromine substituent on the antipyrine core, enabling the construction of complex molecules for pharmaceutical and agrochemical research. This product is essential for R&D chemists and process development scientists in the fine chemical, pharmaceutical, and life science industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in developing new herbicides, fungicides, and insecticides with enhanced efficacy.
• Chemical Synthesis: Acts as a versatile precursor for further functionalization via cross-coupling reactions (e.g., Suzuki, Heck).
• Material Science: Potential intermediate for creating specialized polymers or organic electronic materials.
• Analytical Reference Standard: Serves as a high-purity standard for quality control and method development in analytical laboratories.
• Biochemical Probe Development: Utilized in medicinal chemistry to create molecular probes for studying biological pathways.

Basic Information

Item	Details
Product Name	4-Bromoantipyrine
CAS No.	5426-65-3
Molecular Formula	C11H11BrN2O
Molecular Weight	267.12 g/mol
Synonyms	4-Bromo-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one; 4-Bromo-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one; 4-Bromo-1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one; 4-Bromo-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one; 4-Bromo-2,3-dimethyl-1-phenyl-1H-pyrazol-5-one; 4-Bromo-antipyrine; Bromoantipyrine
EINECS	226-577-5

Quality Control

Our 4-Bromoantipyrine is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and related substances, to meet the stringent requirements of research and development applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	108 - 112 °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.