Description

2,2-Dimethyl-3,3-Diphenyl-4,7,10,13-Tetraoxa-3-Silapentadecan-15-Ol is a specialized organosilicon compound featuring a unique siloxane-polyether hybrid structure. This molecular architecture makes it a valuable intermediate and functional additive, particularly for modifying surface properties and enhancing compatibility in complex formulations. It is primarily sought after by manufacturers in the advanced materials, electronics, and specialty chemical sectors. The compound, identified by CAS No. 198210-37-6, is engineered for applications requiring precise control over hydrophilicity and interfacial activity.

Application

• Surface Modifier/Crosslinker: Used in the synthesis of advanced silicone resins and coatings to improve adhesion, flexibility, and weather resistance.
• Polymer Additive: Acts as a compatibilizer and stabilizer in polymer blends, particularly for engineering plastics and high-performance elastomers.
• Electronic Chemicals Intermediate: Serves as a key precursor in the production of silane coupling agents for semiconductor encapsulation and dielectric materials.
• Adhesive & Sealant Formulation: Enhances the performance of polyurethane and silicone-based adhesives by optimizing moisture cure characteristics and substrate wetting.
• Personal Care & Cosmetics: Functions as a conditioning agent and emollient in hair care and skincare products due to its silky texture and film-forming properties.
• Pharmaceutical Intermediate: Utilized in the controlled synthesis of drug delivery systems and prodrugs where its hydrolyzable siloxane bonds are beneficial.

Basic Information

Product Name	2,2-Dimethyl-3,3-Diphenyl-4,7,10,13-Tetraoxa-3-Silapentadecan-15-Ol
CAS No.	198210-37-6
Molecular Formula	C27H40O5Si
Molecular Weight	472.70 g/mol
Synonyms	3-[2-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]ethoxy]propyl-1,1,1,3,5,5,5-heptamethyl-3-phenyltrisiloxane; Silane, [[3-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]propyl]dimethylsilyl]oxy]dimethylphenyl-; PEG-silane derivative; Hydroxy-terminated phenyl PEG-silane; Poly(ethylene glycol) propyldimethylphenylsiloxane; Dow Corning FF-400 (or analogous trade names); Hydrophilic phenyl siloxane polyether
EINECS	Contact for details

Quality Control

Every batch of 2,2-Dimethyl-3,3-Diphenyl-4,7,10,13-Tetraoxa-3-Silapentadecan-15-Ol is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards and customer-specific requirements. Comprehensive analytical testing, including NMR, HPLC, and GC, is performed to verify identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment and are available upon request.

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). This material is hygroscopic (moisture-sensitive). Keep away from strong acids, strong bases, and oxidizing agents to prevent decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.470 - 1.480
Density (20°C)	1.05 - 1.10 g/cm³

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