Description

2,2,5,5-Tetramethyl-1-Oxa-2,5-Disilacyclopentane-3-Ethanol is a specialized organosilicon compound featuring a unique cyclic disiloxane structure with an ethanol functional group. This molecular architecture makes it a valuable versatile building block and reactive intermediate in advanced material synthesis. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of active pharmaceutical ingredients (APIs), particularly for introducing silicon-containing moieties to modulate drug properties.
• Agrochemical Synthesis: Used in the research and production of novel pesticides and herbicides, where its structure can contribute to improved efficacy and environmental profile.
• Silicone Polymer Modification: Acts as a functional monomer or cross-linking agent for modifying silicone resins and elastomers, enhancing properties like adhesion, surface energy, and compatibility.
• Surface Treatment Agent: Employed in the formulation of advanced coatings and surface treatments to impart specific hydrophobic, oleophobic, or release characteristics.
• Organic Synthesis Building Block: Utilized in academic and industrial research laboratories for constructing complex molecular architectures, leveraging its reactive siloxane and alcohol groups.
• Adhesive & Sealant Formulations: Incorporated as an additive to improve the performance, stability, and curing characteristics of high-performance adhesives and sealants.

Basic Information

Product Name	2,2,5,5-Tetramethyl-1-Oxa-2,5-Disilacyclopentane-3-Ethanol
CAS No.	824393-85-3
Molecular Formula	C9H22O2Si2
Molecular Weight	218.44 g/mol
Synonyms	3-(Hydroxyethyl)-2,2,5,5-tetramethyl-1-oxa-2,5-disilacyclopentane; 2,2,5,5-Tetramethyl-1-oxa-2,5-disilacyclopentan-3-ethanol; 2-(2,2,5,5-Tetramethyl-1-oxa-2,5-disilacyclopentan-3-yl)ethanol; Cyclic hydroxylethyl disiloxane; TMODS-EtOH; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 2,2,5,5-Tetramethyl-1-Oxa-2,5-Disilacyclopentane-3-Ethanol is manufactured 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 all relevant specifications are provided with each shipment. We support compliance with REACH and other global regulatory frameworks as required.

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 from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.430 - 1.440
Density (g/mL at 20°C)	0.92 - 0.96

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