Description

1-Penten-3-One, 4-Bromo- is a specialized brominated α,β-unsaturated ketone, a versatile building block in advanced organic synthesis. This compound is valued for its reactive alkene and carbonyl functionalities, which can be selectively modified to create complex molecular architectures. It is primarily sought by research chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for applications in medicinal chemistry, material science, and the synthesis of novel intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring bromo-functionalized scaffolds.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Acts as a versatile electrophile in Michael additions and other C-C bond-forming reactions to produce specialty chemicals.
• Material Science Research: Employed in the development of organic semiconductors, liquid crystals, and advanced polymeric materials.
• Cross-Coupling Reactions: Functions as a substrate in palladium-catalyzed reactions (e.g., Suzuki, Heck) for constructing complex organic molecules.
• Academic & Industrial R&D: A valuable reagent for method development and exploring new synthetic pathways in chemistry laboratories.

Basic Information

Product Name	1-Penten-3-One, 4-Bromo-
CAS No.	74067-76-8
Molecular Formula	C5H7BrO
Molecular Weight	163.01 g/mol
Synonyms	4-Bromo-1-penten-3-one; 4-Bromopent-1-en-3-one; 1-Penten-3-one, 4-bromo-; 4-Bromo-3-oxo-1-pentene; (E/Z)-4-Bromo-1-penten-3-one
EINECS	Contact for details

Quality Control

Our 1-Penten-3-One, 4-Bromo- is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality systems are designed to support cGMP and ISO standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong acids and incompatible organic solvents. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Typical 97-99%)
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.