Description

Carbamic Acid, [(3-Methyl-3-Oxetanyl)Methyl]-, Ethyl Ester (9Ci) is a specialized oxetane-functional carbamate ester, a high-value intermediate in advanced organic synthesis. This compound matters for its role as a versatile building block, enabling the introduction of the reactive oxetane moiety into polymer backbones and fine chemical structures. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and performance materials industries seeking to develop novel products with enhanced properties.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for the development of new active pharmaceutical ingredients (APIs), particularly those requiring the incorporation of the oxetane ring for metabolic stability or as a bioisostere.
• Polymer & Resin Modification: Used as a functional monomer or cross-linking agent in the synthesis of specialty polymers, coatings, and adhesives to impart improved toughness, chemical resistance, or low shrinkage.
• Agrochemical Synthesis: Acts as a precursor in the manufacture of advanced herbicides, fungicides, and insecticides, where the oxetane group can enhance biological activity or environmental profile.
• Liquid Crystal & Electronic Materials: Employed in the production of monomers for liquid crystal polymers (LCPs) and other electronic materials that require specific dielectric or optical properties.
• Crosslinking Agent for UV-Curable Systems: Functions in formulations for UV-curable inks, coatings, and 3D printing resins, where it contributes to rapid curing and final material performance.
• Organic Synthesis Building Block: Provides a protected amine functionality and a reactive oxetane site for multi-step synthetic routes in medicinal and process chemistry.

Basic Information

Product Name	Carbamic Acid, [(3-Methyl-3-Oxetanyl)Methyl]-, Ethyl Ester (9Ci)
CAS No.	153209-96-2
Molecular Formula	C8H15NO3
Molecular Weight	173.21 g/mol
Synonyms	Ethyl N-[(3-Methyloxetan-3-yl)methyl]carbamate; 3-[(Ethoxycarbonylamino)methyl]-3-methyloxetane; Oxetane-3-methanamine, N-ethoxycarbonyl-3-methyl-; (3-Methyl-3-oxetanylmethyl)carbamic acid ethyl ester; Ethyl (3-methyl-3-oxetanylmethyl)carbamate; Urea, N-[(3-methyl-3-oxetanyl)methyl]-, ethyl ester (9CI)
EINECS	Contact for details

Quality Control

Our Carbamic Acid, [(3-Methyl-3-Oxetanyl)Methyl]-, Ethyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.450 - 1.460
Density (20°C)	1.08 - 1.12 g/mL

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