Description

Bis(Trimethylsilyl)Methane CAS NO 2117-28-4 is a versatile organosilicon compound featuring two trimethylsilyl groups bonded to a central methylene unit, serving as a valuable silylating agent and synthetic building block. Its primary commercial value lies in its ability to introduce the bulky trimethylsilyl group, which is crucial for protecting reactive sites, modifying solubility, and facilitating specific organic transformations in advanced synthesis. This chemical is essential for R&D and production within the pharmaceutical, agrochemical, and advanced materials sectors, where precise molecular engineering is required.

Application

• Pharmaceutical Intermediate: Used as a key reagent in the synthesis of active pharmaceutical ingredients (APIs), particularly for protecting hydroxyl or amine groups during complex multi-step reactions.
• Agrochemical Synthesis: Employed in the production of advanced pesticides and herbicides where silicon incorporation can enhance biological activity or environmental stability.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the development of silicone-based polymers, resins, and specialty materials with tailored thermal and mechanical properties.
• Organic Synthesis Reagent: Functions as a nucleophilic silylating agent in laboratories and pilot plants for the preparation of organometallic compounds and other sensitive intermediates.
• Surface Modification: Utilized to create hydrophobic coatings on glass, metals, or other substrates by forming stable siloxane bonds.
• Analytical Chemistry: Serves as a derivatization agent in gas chromatography (GC) and mass spectrometry (MS) to improve the volatility and detection of polar compounds.

Basic Information

Product Name	Bis(Trimethylsilyl)Methane
CAS No.	2117-28-4
Molecular Formula	C7H20Si2
Molecular Weight	160.41 g/mol
Synonyms	1,1-Bis(trimethylsilyl)methane; Methane, bis(trimethylsilyl)-; (Trimethylsilyl)methane, 1,1-bis(trimethylsilyl)-; NSC 163082; Hexamethyldisilylmethane; Bis(trimethylsilyl)methane; TMS-CH2-TMS
EINECS	218-315-6

Quality Control

Our Bis(Trimethylsilyl)Methane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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). Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and product loss.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	0.76 - 0.78 g/mL
Refractive Index (n20D)	1.420 - 1.425

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