Description

Trimethylene Oxide (CAS NO 503-30-0) is a highly versatile, three-membered cyclic ether, also known as oxetane, valued for its unique strained-ring structure that imparts high reactivity. This makes it a crucial chemical building block for synthesizing a wide range of polymers, pharmaceuticals, and specialty materials. It is primarily sought by R&D chemists and process engineers in the pharmaceutical, polymer, and fine chemical industries for developing advanced materials and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of various drug molecules and active pharmaceutical ingredients (APIs), leveraging its ring-opening reactions.
• Polymer Chemistry: Used as a monomer for producing polyethers and other specialty polymers with tailored properties for coatings, adhesives, and elastomers.
• Organic Synthesis: Acts as a versatile reagent for introducing the oxetane moiety into complex molecules, enabling the creation of novel compounds in agrochemical and material science research.
• Cross-linking Agent: Employed in formulations to enhance the thermal and mechanical properties of resins and polymer networks.
• Fuel & Lubricant Additives: Investigated for use in synthesizing components that improve the performance characteristics of fuels and synthetic lubricants.
• Chemical Research (R&D): A valuable tool in academic and industrial laboratories for studying ring-strain chemistry and developing new synthetic methodologies.

Basic Information

Product Name	Trimethylene Oxide
CAS No.	503-30-0
Molecular Formula	C₃H₆O
Molecular Weight	58.08 g/mol
Synonyms	Oxetane; 1,3-Epoxypropane; Trimethylene oxide; Oxacyclobutane; 1,3-Propylene oxide; 3-Oxabicyclo[3.1.0]hexane (derivative base structure); Cyclic ether of trimethylene glycol
EINECS	207-964-3

Quality Control

Every batch of our Trimethylene Oxide is produced and tested under a stringent quality management system to ensure high purity and batch-to-batch consistency. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, supporting its use in regulated synthesis pathways.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated area away from heat sources and open flames. Recommended storage temperature is 2-8°C to maintain stability. Keep container tightly sealed when not in use to prevent evaporation and potential moisture ingress.

Specification

Item	Specification
Appearance	Colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Impurities (GC)	≤ 1.0% (total)

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