Description

1-Penten-3-One, 2-Bromo- is a specialized brominated α,β-unsaturated ketone, a versatile building block in advanced organic synthesis. Its unique structure, featuring both a reactive carbonyl and an alkene group activated by a bromine substituent, makes it a critical intermediate for constructing complex molecular architectures. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and materials science industries seeking to introduce functionalized pentenone motifs.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a functionalized five-carbon chain.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, where the bromine atom allows for further cross-coupling reactions.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers and advanced organic materials.
• Organic Synthesis Building Block: Employed in Michael additions, nucleophilic substitution reactions, and cyclization processes to create complex heterocycles and fine chemicals.
• Flavor & Fragrance Chemistry: Potential intermediate for synthesizing specific aroma compounds, leveraging its unsaturated ketone backbone.
• Academic & R&D Laboratories: A valuable reagent for methodological studies and exploring new synthetic pathways in organic chemistry.

Basic Information

Product Name	1-Penten-3-One, 2-Bromo-
CAS No.	171877-74-0
Molecular Formula	C5H7BrO
Molecular Weight	163.01 g/mol
Synonyms	2-Bromo-1-penten-3-one; 2-Bromopent-1-en-3-one; 1-Penten-3-one, 2-bromo-; 2-Bromo-3-oxo-1-pentene; Bromo vinyl ketone derivative
EINECS	Contact for details

Quality Control

Every batch of 1-Penten-3-One, 2-Bromo- is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure the compound meets the high-purity standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA), including results for assay, identity, and impurity profiles (typically by GC or HPLC), is supplied with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature and reactivity, it is recommended to handle under an inert atmosphere for extended storage periods.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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