Description

3,3-Dimethyloxetan-2-One is a high-value, four-membered cyclic ester (β-lactone) with the CAS number 45432-82-4. This compound serves as a versatile and reactive building block in advanced organic synthesis, enabling the efficient construction of complex molecular architectures. It is particularly critical for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require precise and scalable intermediates for active ingredient development.

Application

• Pharmaceutical Intermediate: Key synthon for the production of β-amino acids, protease inhibitors, and other bioactive molecules with constrained conformations.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides and fungicides, where its strained ring system introduces specific steric and functional properties.
• Polymer Science: Acts as a monomer or co-monomer for the synthesis of novel polyesters and functionalized polymers with tailored degradation profiles.
• Chemical Research & Development: Essential reagent in methodological studies for ring-opening reactions, [2+2] cycloadditions, and other transformative organic reactions.
• Material Science: Employed in the surface modification of materials and the creation of specialty coatings and adhesives.
• Fine Chemical Production: Intermediate for synthesizing flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	3,3-Dimethyloxetan-2-One
CAS No.	45432-82-4
Molecular Formula	C5H8O2
Molecular Weight	100.12 g/mol
Synonyms	3,3-Dimethyl-β-propiolactone; 3,3-Dimethyl-2-oxetanone; 3,3-Dimethyl-β-propiolactone; beta,β-Dimethyl-β-propiolactone; 2-Oxetanone, 3,3-dimethyl-; 3,3-Dimethyloxetane-2-one; DMO
EINECS	Contact for details

Quality Control

Our 3,3-Dimethyloxetan-2-One is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure high chemical purity and identity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee batch-to-batch consistency and support your regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for long-term stability. The container should be kept tightly sealed under an inert atmosphere to minimize moisture uptake and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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