Description

3-Pentyn-2-One, 5-(Acetyloxy)- (9Ci) is a specialized acetylated alkynone derivative, serving as a high-value synthetic intermediate in advanced organic chemistry. This compound matters for its unique molecular architecture, which provides a versatile handle for constructing complex molecules through selective reactions at the acetyloxy and alkynone functional groups. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for the synthesis of novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those requiring complex alkyne-containing scaffolds.
• Agrochemical Research: Used in developing new active ingredients for crop protection with potential novel modes of action.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and resins with tailored properties.
• Organic Synthesis: A versatile reagent for academic and industrial R&D, enabling reactions like Sonogashira coupling, nucleophilic additions, and cyclizations.
• Ligand & Catalyst Development: Precursor for creating specialized ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Fine Chemical Production: Intermediate in the multi-step synthesis of complex flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Item	Details
Product Name	3-Pentyn-2-One, 5-(Acetyloxy)- (9Ci)
CAS No.	329200-72-8
Molecular Formula	C7H8O3
Molecular Weight	140.14 g/mol
Synonyms	5-(Acetyloxy)-3-pentyn-2-one; 3-Pentyn-2-one, 5-(acetyloxy)-; 5-Acetoxy-3-pentyn-2-one; 2-Pentyn-4-one, 5-acetate; 5-Acetyloxy-3-pentyn-2-one; 3-Pentyn-2-one, 5-acetate; 5-Acetoxypent-3-yn-2-one; 329200-72-8
EINECS	Contact for details

Quality Control

Our 3-Pentyn-2-One, 5-(Acetyloxy)- (9Ci) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical characterization, including chromatographic purity assays and structural confirmation via spectroscopic methods. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider maintaining the material under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 0.5%

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