Description

cis-1-Bromo-2-Ethoxyethylene is a versatile halogenated vinyl ether building block used in advanced organic synthesis. Its unique structure, featuring both a bromine atom and an ethoxy group on the same side of the double bond, makes it a valuable electrophilic reagent for constructing complex molecules. This compound is primarily sought by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediates: A key electrophile in the synthesis of complex heterocycles and targeted small molecule APIs.
• Agrochemical Synthesis: Used as a building block for creating novel herbicides, fungicides, and insecticides.
• Material Science Monomers: Serves as a functional monomer for the development of specialized polymers with unique properties.
• Cross-Coupling Reactions: An effective substrate in palladium-catalyzed reactions like Heck, Suzuki, and Sonogashira couplings.
• Nucleophilic Substitution: The bromine atom is readily displaced by various nucleophiles to introduce new functional groups.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new chemical spaces in discovery chemistry.

Basic Information

Product Name	cis-1-Bromo-2-Ethoxyethylene
CAS No.	23521-49-5
Molecular Formula	C4H7BrO
Molecular Weight	151.00 g/mol
Synonyms	1-Bromo-2-ethoxyethene; (Z)-1-Bromo-2-ethoxyethylene; (Z)-1-Bromo-2-ethoxyethene; cis-1-Bromo-2-ethoxyethene; Bromoethoxyethylene; 2-Bromo-1-ethoxyethylene; (Z)-2-Bromo-1-ethoxyethene; EINECS 245-724-8
EINECS	245-724-8

Quality Control

Our cis-1-Bromo-2-Ethoxyethylene is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as identity, purity, and impurity profiles. Our quality management system is designed to meet the rigorous demands of industrial and academic laboratories.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and light-sensitive nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) at temperatures between 2°C and 8°C for extended stability. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0% (Area %)
Isomeric Purity (cis-isomer)	≥ 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.