Description

3-Butyn-2-One is a versatile and highly reactive alkyne ketone building block, essential for advanced organic synthesis. Its terminal alkyne and carbonyl functionalities make it a critical precursor for constructing complex molecular architectures. This compound is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing heterocyclic compounds, potential drug candidates, and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Material Science: Precursor for polymers, dendrimers, and specialty coatings with tailored properties.
• Chemical Research: Fundamental reagent in academic and industrial R&D for exploring new reactions, such as click chemistry and Sonogashira couplings.
• Ligand and Catalyst Development: Serves as a starting material for creating novel ligands and organometallic catalysts.
• Flavor and Fragrance Industry: Intermediate for synthesizing specific aroma chemicals and flavor compounds.

Basic Information

Product Name	3-Butyn-2-One
CAS No.	1423-60-5
Molecular Formula	C4H4O
Molecular Weight	68.07 g/mol
Synonyms	But-3-yn-2-one; 1-Butyn-3-one; 3-Butyn-2-one; Methyl ethynyl ketone; Acetylethyne; Ethynyl methyl ketone; 2-Butyn-4-one
EINECS	215-827-5

Quality Control

Our 3-Butyn-2-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to verify identity, purity, and impurity profiles. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place, away from heat, sparks, and open flames. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) and at temperatures between 2°C and 8°C for long-term stability. Keep away from incompatible materials such as strong oxidizing agents, strong bases, and reducing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.418 - 1.422
Density (20°C)	0.88 - 0.92 g/mL

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