Description

(E)-1-Chloro-2-Pentene-1-One is a high-purity, light-sensitive organic building block characterized by its reactive α,β-unsaturated ketone structure with a chloro substituent. This compound is valued for its versatility as a key electrophilic synthon in advanced organic synthesis, enabling the construction of complex molecular frameworks. It is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly in medicinal chemistry research.
• Agrochemical Synthesis: Used in the development and production of advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a key electrophile in multi-step organic synthesis for creating complex flavors, fragrances, and specialty performance chemicals.
• Academic & Industrial R&D: An essential reagent for methodological studies in organic chemistry, including conjugate addition reactions and cyclization processes.
• Material Science Precursor: Potential use in the synthesis of monomers or functionalized polymers with specific optical or electronic properties.

Basic Information

Product Name	(E)-1-Chloro-2-Pentene-1-One
CAS No.	33698-85-0
Molecular Formula	C5H7ClO
Molecular Weight	118.56 g/mol
Synonyms	1-Chloro-2-penten-1-one; (E)-1-Chloro-2-penten-1-one; 1-Chloro-2-penten-1-one, (E)-; 2-Penten-1-one, 1-chloro-, (E)-; trans-1-Chloro-2-penten-1-one; 1-Chloropent-2-en-1-one; 1-Chloro-1-oxo-2-pentene
EINECS	Contact for details

Quality Control

Our (E)-1-Chloro-2-Pentene-1-One is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profile.

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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Isomeric Purity (E/Z ratio)	≥ 95:5 (E:Z)

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