Description

4-Bromo-3-Fluoro-Benzoic Acid tert-Butyl Ester is a high-purity, synthetically valuable aromatic ester building block. This compound is specifically engineered to serve as a key intermediate in advanced organic synthesis, offering a protected carboxylic acid group and halogen handles for selective functionalization. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for constructing complex molecules, such as active pharmaceutical ingredients (APIs) and novel crop protection agents.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting various disease areas.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its halogenated aromatic structure.
• Ligand and Material Science Precursor: Serves as a starting material for creating specialized ligands for catalysis or monomers for advanced polymeric materials.
• Cross-Coupling Reactions: The bromo substituent makes it an excellent substrate for palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Sonogashira) to form biaryl structures.
• Parallel and Combinatorial Chemistry: Ideal for library synthesis in high-throughput screening due to its well-defined reactivity profile.
• Chemical Biology Probes: Can be utilized to synthesize molecular probes for studying biological processes and target engagement.

Basic Information

Product Name	4-Bromo-3-Fluoro-Benzoic Acid tert-Butyl Ester
CAS No.	1057961-75-7
Molecular Formula	C11H12BrFO2
Molecular Weight	275.12 g/mol
Synonyms	tert-Butyl 4-bromo-3-fluorobenzoate; 4-Bromo-3-fluorobenzoic acid tert-butyl ester; Benzoic acid, 4-bromo-3-fluoro-, 1,1-dimethylethyl ester; 1,1-Dimethylethyl 4-bromo-3-fluorobenzoate; 4-Bromo-3-fluoro-benzoic acid tert-butyl ester; 4-Bromo-3-fluorobenzoic acid 1,1-dimethylethyl ester; t-Butyl 4-bromo-3-fluorobenzoate
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Fluoro-Benzoic Acid tert-Butyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates for research and development under cGMP-like controls where applicable.

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 the container tightly sealed to prevent moisture absorption and contamination. Handle and store in accordance with all applicable local and international regulations.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 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.