Description

4-Bromo-2-Pentenoic Acid Ethyl Ester is a versatile brominated α,β-unsaturated ester that serves as a key synthetic intermediate in advanced organic chemistry. Its value lies in the reactive bromine and alkene functionalities, enabling a range of transformations including cross-coupling reactions and Michael additions. This compound is primarily needed by research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and plant growth regulators.
• Material Science Research: Serves as a monomer or precursor in the development of specialized polymers and functional materials.
• Cross-Coupling Reactions: Acts as an electrophilic partner in palladium-catalyzed reactions like Heck, Suzuki, and Negishi couplings.
• Conjugate Addition (Michael Reaction): The α,β-unsaturated system is an excellent acceptor for nucleophiles in C-C bond formation.
• Chemical Synthesis Reagent: Employed in academic and industrial R&D labs for exploring new synthetic methodologies.
• Ligand and Catalyst Development: Used as a precursor for synthesizing novel chiral ligands or organocatalysts.
• Flavor and Fragrance Industry: Potential intermediate for the synthesis of complex odor and taste molecules.

Basic Information

Product Name	4-Bromo-2-Pentenoic Acid Ethyl Ester
CAS No.	71101-32-1
Molecular Formula	C7H11BrO2
Molecular Weight	207.07 g/mol
Synonyms	Ethyl 4-Bromo-2-pentenoate; 4-Bromo-2-pentenoic Acid Ethyl Ester; 2-Pentenoic Acid, 4-Bromo-, Ethyl Ester; (E/Z)-Ethyl 4-Bromo-2-pentenoate; Ethyl (E/Z)-4-Bromopent-2-enoate; 4-Bromopent-2-enoic Acid Ethyl Ester; Bromopentenoic Acid Ethyl Ester
EINECS	Contact for details

Quality Control

Our 4-Bromo-2-Pentenoic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and structural confirmation, to ensure consistency and reliability for your synthetic processes. Certificates of Analysis (COA) with detailed specifications are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. The container should be kept tightly sealed to prevent moisture ingress and potential decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (GC/HPLC area %)
Isomeric Ratio (E/Z)	Specified upon request
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.