Description

Carbonic Acid, 2-Ethyl-2-Methyl-1,3-Dioxan-5-Yl Methyl Ester (9Ci) is a specialized cyclic carbonate ester with the CAS registry number 545518-29-4. This compound serves as a valuable high-purity chemical intermediate and functional monomer in advanced material synthesis. It is primarily sought by R&D and production teams in the pharmaceutical, polymer, and fine chemical industries for developing novel products with enhanced properties.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly where a cyclic carbonate moiety is required for controlled release or specific bioactivity.
• Polymer Chemistry: Acts as a monomer or co-monomer for producing specialty polycarbonates and polyurethanes with tailored thermal and mechanical characteristics.
• Electrolyte Additive: Investigated for use as a functional additive in lithium-ion battery electrolytes to improve stability and performance at high voltages.
• Crosslinking Agent: Employed in coatings, adhesives, and resin formulations to introduce crosslinks, enhancing durability and chemical resistance.
• Organic Synthesis Building Block: Serves as a protected form of a diol or as a reagent for introducing the 1,3-dioxane ring system into more complex molecular architectures.
• Solvent for Specialized Applications: Utilized as a high-boiling, polar aprotic solvent for reactions requiring specific solvation properties.

Basic Information

Product Name	Carbonic Acid, 2-Ethyl-2-Methyl-1,3-Dioxan-5-Yl Methyl Ester (9Ci)
CAS No.	545518-29-4
Molecular Formula	C9H16O5
Molecular Weight	204.22 g/mol
Synonyms	2-Ethyl-2-methyl-1,3-dioxan-5-yl methyl carbonate; Methyl (2-ethyl-2-methyl-1,3-dioxan-5-yl) carbonate; 5-(Methoxycarbonyloxy)-2-ethyl-2-methyl-1,3-dioxane; Carbonic acid, methyl ester, cyclic ester with 2-ethyl-2-methyl-1,3-propanediol; 2-Ethyl-2-methyl-1,3-dioxane-5-methyl carbonate; Cyclic carbonate ester of 2-ethyl-2-methyl-1,3-propanediol
EINECS	Contact for details

Quality Control

Our Carbonic Acid, 2-Ethyl-2-Methyl-1,3-Dioxan-5-Yl Methyl Ester (9Ci) is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing batch-specific results are available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive (hygroscopic); ensure containers are kept tightly sealed to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.430 - 1.450
Density (20°C)	1.15 - 1.25 g/mL

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