Description

4-Bromo-1-Ethyl-3-(4-Nitrophenyl)-1H-Pyrazole is a high-purity, synthetically valuable heterocyclic building block. This compound is specifically engineered for advanced organic synthesis and pharmaceutical research, offering a versatile scaffold for constructing complex molecules. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for lead optimization and the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting kinase inhibition or other enzyme-related pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its pyrazole core structure.
• Material Science: Serves as a building block for creating specialized organic ligands, dyes, or photoactive materials.
• Chemical Biology: Employed as a probe or a tagged molecule in biochemical assays and mechanism-of-action studies.
• Academic & Contract Research: Essential for methodological development and exploratory synthesis in university and CRO laboratory settings.

Basic Information

Product Name	4-Bromo-1-Ethyl-3-(4-Nitrophenyl)-1H-Pyrazole
CAS No.	942920-12-9
Molecular Formula	C11H10BrN3O2
Molecular Weight	296.12 g/mol
Synonyms	4-Bromo-1-ethyl-3-(4-nitrophenyl)-1H-pyrazole; 1-Ethyl-4-bromo-3-(4-nitrophenyl)pyrazole; 3-(4-Nitrophenyl)-4-bromo-1-ethyl-1H-pyrazole; 4-Bromo-1-ethyl-3-(p-nitrophenyl)pyrazole; 942920-12-9; 4-Bromo-1-ethyl-3-(4-nitrophenyl)pyrazole
EINECS	Contact for details

Quality Control

Our 4-Bromo-1-Ethyl-3-(4-Nitrophenyl)-1H-Pyrazole is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment 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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.