Description

Chlorotrimethyl-D9-Silane CAS NO 20395-57-7 is a deuterated organosilicon compound where nine hydrogen atoms are replaced by deuterium, serving as a critical isotopically labeled reagent. This deuteration provides a stable, non-radioactive isotopic label essential for advanced analytical and synthetic chemistry. It is primarily needed by researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries for applications such as NMR spectroscopy, mass spectrometry internal standards, and mechanistic studies.

Application

• As a deuterium-labeled internal standard for the precise quantification of related silane compounds or metabolites via Gas Chromatography-Mass Spectrometry (GC-MS) or Liquid Chromatography-Mass Spectrometry (LC-MS).
• As a deuterium source or labeling reagent in organic synthesis and mechanistic studies to trace reaction pathways or create deuterated analogs of target molecules.
• In the synthesis of deuterated silicone polymers and materials for specialized applications in electronics and coatings where isotopic purity alters physical properties.
• For NMR spectroscopy studies, where its distinct deuterium signature aids in solvent suppression, spectral simplification, and structural elucidation of complex molecules.
• In academic and industrial R&D for investigating surface chemistry, silylation reactions, and catalytic processes involving silicon centers.
• As a precursor for preparing other deuterated silane coupling agents used to modify surface properties of inorganic materials like glass or silica.

Basic Information

Product Name	Chlorotrimethyl-D9-Silane
CAS No.	20395-57-7
Molecular Formula	C3D9ClSi
Molecular Weight	126.70 g/mol
Synonyms	Perdeuterated Chlorotrimethylsilane; Trimethylsilyl-D9 Chloride; (Trideuteriomethyl)(2H3)chlorosilane; D9-TMCS; Chlorotrimethylsilane-d9; NSC 134022; TMSCl-d9; (2H9)Trimethylchlorosilane
EINECS	Contact for details

Quality Control

Our Chlorotrimethyl-D9-Silane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including NMR and GC-MS, to confirm isotopic purity (D-enrichment > 99 atom % D) and chemical purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (argon or nitrogen) and away from moisture. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, oxidizing agents, and water.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (NMR)	Conforms to structure
Purity (GC)	≥ 98.0%
Isotopic Purity (NMR/MS)	≥ 99 atom % D
Water Content (Karl Fischer)	≤ 0.1%

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