Description

1,1,3,3-Tetramethyl-1,3-Di(2-Phenylethyl) Disiloxane is a specialized organosilicon compound, specifically a disiloxane derivative, valued for its unique combination of organic and inorganic properties. This chemical serves as a versatile intermediate and functional additive, offering excellent thermal stability and compatibility with various polymer matrices. It is primarily sought by manufacturers in the silicone elastomer, personal care, and specialty chemical industries for applications requiring tailored surface properties and enhanced material performance.

Application

• Silicone Elastomer Modifier: Used as a crosslinking agent or property modifier to enhance the flexibility, thermal stability, and surface characteristics of silicone rubbers and gels.
• Personal Care Formulations: Acts as an emollient or conditioning agent in high-end cosmetics, hair care products, and skincare formulations, providing a smooth, non-greasy feel.
• Release Coatings: Employed in the production of pressure-sensitive adhesives and release liners for labels and tapes.
• Lubricant and Grease Additive: Functions as a high-performance additive in specialty lubricants and greases to improve viscosity index and thermal-oxidative stability.
• Pharmaceutical Intermediate: Serves as a key synthetic building block in the production of certain active pharmaceutical ingredients (APIs) and drug delivery systems.
• Surface Treatment Agent: Used to modify surface energy and provide water repellency or release properties to textiles, paper, and plastics.

Basic Information

Product Name	1,1,3,3-Tetramethyl-1,3-Di(2-Phenylethyl) Disiloxane
CAS No.	17233-63-5
Molecular Formula	C22H34OSi2
Molecular Weight	370.68 g/mol
Synonyms	1,3-Bis(2-phenylethyl)-1,1,3,3-tetramethyldisiloxane; Tetramethyl-bis(2-phenylethyl)disiloxane; Disiloxane, 1,1,3,3-tetramethyl-1,3-bis(2-phenylethyl)-; Bis(2-phenylethyl)tetramethyldisiloxane; 2-Phenylethyltetramethyldisiloxane (mixture of isomers); TMDPED; Phenylethyl Modified Silicone Fluid
EINECS	Contact for details

Quality Control

Our 1,1,3,3-Tetramethyl-1,3-Di(2-Phenylethyl) Disiloxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are provided with every shipment to guarantee compliance with your specifications and industry standards.

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 strong oxidizing agents, strong acids, and strong bases. The container should be kept tightly sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.495 - 1.505
Density (20°C)	0.95 - 0.98 g/mL

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