Description

2,2,39,39-Tetramethyl-3,38-Dioxa-2,39-Disilatetracontane is a high-purity, organosilicon-based chemical compound, specifically a linear disiloxane with extended alkyl chains. This compound is valued for its role as a versatile intermediate and functional fluid in advanced material synthesis, offering unique properties derived from its silicon-oxygen backbone and hydrocarbon termini. It is primarily needed by manufacturers in the specialty chemicals, polymers, and lubricants sectors, where it serves as a building block for silicones, a surface modifier, or a component in high-performance formulations.

Application

• Silicone Polymer Intermediate: Acts as a key monomer or chain extender in the synthesis of custom polysiloxanes and silicone copolymers.
• Surface Modification Agent: Used to impart hydrophobic or release properties to surfaces in coatings, textiles, and paper treatments.
• Lubricant & Grease Formulation: Serves as a base fluid or additive in specialty lubricants requiring high thermal stability and low volatility.
• Adhesive & Sealant Component: Incorporated into formulations to modify rheology, enhance weather resistance, or improve adhesion.
• Pharmaceutical & Cosmetic Excipient: Potential use as an emollient or carrier in topical applications due to its inert and smooth texture.
• Research & Development: Utilized in academic and industrial R&D for studying organosilicon chemistry and developing novel materials.

Basic Information

Product Name	2,2,39,39-Tetramethyl-3,38-Dioxa-2,39-Disilatetracontane
CAS No.	35177-13-0
Molecular Formula	C42H90O2Si2
Molecular Weight	683.4 g/mol
Synonyms	Hexatriacontyl Disiloxane, Tetramethyl Derivative; 1,1,1,39,39,39-Hexamethyl-3,38-dioxa-2,39-disilatetracontane; Bis(triacontyl) Tetramethyl Disiloxane; Linear C30 Disiloxane; Organosiloxane Fluid; Silicone Intermediate C30; Tetramethyldisiloxane with C30 Alkyl Chains
EINECS	Contact for details

Quality Control

Our production of 2,2,39,39-Tetramethyl-3,38-Dioxa-2,39-Disilatetracontane adheres to stringent quality management protocols. 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 available upon request to support 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 strong oxidizing agents and bases. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20D)	1.440 - 1.450
Density (g/mL, 20°C)	0.85 - 0.90
Water Content (KF)	≤ 0.1%

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