Description

5-Hydroxy-4-Pentyn-2-One is a versatile bifunctional organic compound featuring both a hydroxyl group and an alkyne moiety. This unique structure makes it a valuable building block in organic synthesis, particularly for constructing complex molecular architectures. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of heterocyclic compounds, bioactive molecules, and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a precursor for polymers, dendrimers, and other advanced materials requiring specific functional groups.
• Click Chemistry: The alkyne group is amenable to Huisgen cycloaddition (click) reactions for bioconjugation and polymer functionalization.
• Fine Chemical Production: Employed in the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.
• Academic & Industrial R&D: A fundamental reagent for methodological development and exploring new synthetic pathways in organic chemistry.

Basic Information

Product Name	5-Hydroxy-4-Pentyn-2-One
CAS No.	64011-43-4
Molecular Formula	C5H6O2
Molecular Weight	98.10 g/mol
Synonyms	4-Pentyn-2-one, 5-hydroxy-; 5-Hydroxypent-4-yn-2-one; 1-Hydroxy-3-butyn-2-one; 3-Butyn-2-one, 1-hydroxy-; Acetylene alcohol ketone derivative
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-4-Pentyn-2-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%

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