Description

Acetyl Ketene CAS NO 674-82-8 is a highly reactive organic compound belonging to the ketene family, characterized by its acetyl-substituted structure. This compound serves as a versatile and critical chemical building block for synthesizing more complex molecules, offering significant value in advanced chemical manufacturing. It is primarily sought after by pharmaceutical intermediates producers and specialty chemical research and development teams for creating novel compounds.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for β-lactam antibiotics and other heterocyclic compounds.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its reactive ketene functionality enables novel molecular architectures.
• Polymer & Resin Modifier: Employed to introduce acetylketene groups into polymer chains, enhancing specific properties like adhesion, cross-linking density, or thermal stability.
• Fine Chemical Production: Serves as a reagent for the preparation of esters, amides, and other derivatives in custom synthesis and fine chemical manufacturing.
• Research & Development: Utilized in academic and industrial R&D labs for exploring new organic reactions and developing novel synthetic methodologies.
• Dye & Pigment Intermediate: Acts as a building block in the synthesis of complex organic colorants and functional dyes.

Basic Information

Product Name	Acetyl Ketene
CAS No.	674-82-8
Molecular Formula	C4H4O2
Molecular Weight	84.07 g/mol
Synonyms	Acetylketene; 3-Butene-2-one, 4-oxo-; 4-Oxo-3-buten-2-one; Ketene, acetyl-; 1-Butene-1,3-dione; Acetylketen; Butadienone; Methyl 2-oxovinyl ketone
EINECS	211-617-6

Quality Control

Our Acetyl Ketene is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and reliability. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as purity and identity. Our quality systems are designed to meet the rigorous demands of pharmaceutical and fine chemical applications, ensuring the material's suitability for sensitive synthesis processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, oxidizing agents, and moisture. Due to its reactive ketene nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability and to minimize polymerization or decomposition. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	Report and comply with agreed limits

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