Description

4-Penten-2-One, 1-Chloro-3,3-Difluoro- is a versatile fluorinated organic building block characterized by its highly volatile nature and reactive ketone and chloro-difluoromethyl functionalities. This compound is critical for introducing the valuable 3,3-difluoropropene moiety into target molecules, enabling the synthesis of advanced materials and bioactive compounds. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex fluorinated intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of novel active pharmaceutical ingredients (APIs), particularly those requiring fluorinated scaffolds to modulate bioavailability and metabolic stability.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides where the introduction of fluorine atoms enhances product efficacy and environmental profile.
• Fluorinated Polymer & Material Science: Acts as a monomer or modifier in the synthesis of specialty polymers, coatings, and electronic materials to impart unique surface properties, chemical resistance, or optical characteristics.
• Organic Synthesis & R&D: A valuable reagent for constructing complex organic molecules via reactions such as Michael additions, nucleophilic substitutions, and cyclizations in academic and industrial research laboratories.
• Liquid Crystal & OLED Material Precursor: Employed in the synthesis of fluorinated components for display and lighting technologies, where specific electronic and steric properties are required.

Basic Information

Product Name	4-Penten-2-One, 1-Chloro-3,3-Difluoro-
CAS No.	85882-51-5
Molecular Formula	C5H5ClF2O
Molecular Weight	148.54 g/mol
Synonyms	1-Chloro-3,3-difluoro-4-penten-2-one; 3,3-Difluoro-1-chloro-4-penten-2-one; 4-Penten-2-one, 1-chloro-3,3-difluoro-; 1-Chloro-3,3-difluoropent-4-en-2-one; (E/Z)-1-Chloro-3,3-difluoropent-4-en-2-one; 1-Chloro-3,3-difluoro-4-penten-2-on (German); 1-クロロ-3,3-ジフルオロ-4-ペンテン-2-オン (Japanese)
EINECS	Contact for details

Quality Control

Every batch of 1-Chloro-3,3-difluoro-4-penten-2-one is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the compound meets the high-purity standards required for sensitive synthetic applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available for each lot upon request, supporting your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place, ideally at controlled room temperature (15-25°C). Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and concentration changes. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	Contact for details
Refractive Index (n20/D)	Contact for details

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