Description

Ethyl (E)-5-Bromo-2-Pentanoate is a high-purity, specialized organic building block characterized by its bromo-ester functional groups. This compound is critical for advanced organic synthesis, enabling the precise construction of complex molecular frameworks through cross-coupling and functional group transformations. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a specific alkene geometry and bromine handle for further derivatization.
• Agrochemical Research: Used in the development and scale-up of novel pesticides, herbicides, and plant growth regulators.
• Organic Synthesis Building Block: Serves as a versatile precursor in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) and nucleophilic substitution reactions to introduce pentenoate chains.
• Material Science: Employed in the research of specialty polymers, liquid crystals, and organic electronic materials where specific ester and alkene functionalities are required.
• Flavor & Fragrance Chemistry: Potential intermediate for the synthesis of complex ester-based aroma compounds, subject to purity and regulatory compliance.
• Academic & R&D Laboratories: Essential for methodological development and discovery chemistry in university and corporate research settings.

Basic Information

Product Name	Ethyl (E)-5-Bromo-2-Pentenoate
CAS No.	132640-86-9
Molecular Formula	C7H11BrO2
Molecular Weight	207.07 g/mol
Synonyms	(E)-Ethyl 5-bromopent-2-enoate; Ethyl (E)-5-bromopent-2-enoate; 5-Bromo-2-pentenoic acid ethyl ester; trans-Ethyl 5-bromo-2-pentenoate; 2-Pentenoic acid, 5-bromo-, ethyl ester, (E)-; Ethyl trans-5-bromo-2-pentenoate; 132640-86-9; 5-Bromopent-2-enoic acid ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl (E)-5-Bromo-2-Pentenoate is manufactured under strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and isomeric integrity. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming identity, purity, and impurity profiles to meet your specific R&D or production requirements.

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 materials. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
(E)-Isomer Content (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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