Description

2,2,27,27-Tetramethyl-3,26-Dioxa-2,27-Disilaoctacosane is a high-purity organosilicon compound, specifically a linear siloxane derivative with terminal trimethylsilyl groups. This chemical is valued for its role as a versatile hydrophobic protecting agent and a key intermediate in the synthesis of specialty polymers and advanced materials. It is essential for manufacturers in the pharmaceutical, agrochemical, and silicone polymer industries requiring precise surface modification or controlled organic synthesis.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) where silicon-based protecting groups are required for sensitive reactions.
• Surface Modification Agent: Imparts hydrophobic properties to glass, silica, and other inorganic surfaces in coatings and composites.
• Silicone Polymer Synthesis: Serves as a chain extender or cross-linking agent in the production of specialty polydimethylsiloxanes (PDMS) with tailored properties.
• Agrochemical Formulations: Employed as an intermediate in creating silicon-containing adjuvants or active ingredients that enhance product performance.
• Research & Development: A valuable reagent in organic and organometallic chemistry labs for developing new synthetic methodologies.
• Electronics Industry: Potential use in the passivation layer formation or as a precursor in chemical vapor deposition (CVD) processes for microelectronics.

Basic Information

Product Name	2,2,27,27-Tetramethyl-3,26-Dioxa-2,27-Disilaoctacosane
CAS No.	22396-30-1
Molecular Formula	C30H66O2Si2
Molecular Weight	515.0 g/mol
Synonyms	1,26-Bis(trimethylsiloxy)hexacosane; Hexacosane-1,26-diyl bis(trimethylsilyl) ether; α,ω-Bis(trimethylsiloxy)hexacosane; Bis(trimethylsilyl) hexacosane-1,26-dioate; TMS-protected C26 diol; 1,26-Hexacosanediol bis(trimethylsilyl) ether; 26-[(Trimethylsilyl)oxy]hexacosyl trimethylsilyl ether
EINECS	Contact for details

Quality Control

Our 2,2,27,27-Tetramethyl-3,26-Dioxa-2,27-Disilaoctacosane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting full specifications are available for every shipment 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 controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. The container must be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.2%
Residue on Ignition	≤ 0.1%

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