Description

C17H28O3Si CAS NO 1044872-73-2 is a specialized organosilicon compound, a key intermediate in advanced material synthesis. Its value lies in its unique siloxane-based structure, which imparts desirable properties like thermal stability and surface activity to final products. This chemical is essential for manufacturers in the silicone polymer, pharmaceutical, and specialty chemical industries seeking to develop high-performance materials.

Application

• Silicone Polymer Modification: Acts as a crucial monomer or cross-linking agent in the synthesis of custom polysiloxanes with tailored mechanical and thermal properties.
• Pharmaceutical Intermediates: Serves as a protected or functionalized building block in the multi-step synthesis of active pharmaceutical ingredients (APIs), particularly those requiring silicon-containing moieties.
• Surface Treatment & Coatings: Used to formulate primers and adhesion promoters that enhance bonding between organic polymers and inorganic substrates like glass or metal.
• Specialty Additives: Incorporated into lubricants, release agents, or foam stabilizers to improve performance characteristics such as hydrophobicity and temperature resistance.
• Research & Development (R&D): A valuable reagent for academic and industrial R&D labs exploring new organosilicon chemistry, material science, and catalysis.
• Electronics & Semiconductor Precursors: Potential use in the deposition of silicon-containing thin films or as a precursor in chemical vapor deposition (CVD) processes for microelectronics.

Basic Information

Product Name	C17H28O3Si
CAS No.	1044872-73-2
Molecular Formula	C17H28O3Si
Molecular Weight	308.49 g/mol
Synonyms	1,1,1,3,5,5,5-Heptamethyl-3-(3-methylbutyl)trisiloxane; 3-(3-Methylbutyl)-1,1,1,3,5,5,5-heptamethyltrisiloxane; Heptamethyl(3-methylbutyl)trisiloxane; Trisiloxane, 1,1,1,3,5,5,5-heptamethyl-3-(3-methylbutyl)-; (3-Methylbutyl)heptamethyltrisiloxane
EINECS	Contact for details

Quality Control

Our production of C17H28O3Si adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation. A Certificate of Analysis (COA) detailing specific results for identity, assay, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can compromise product integrity. Keep away from incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.405 - 1.415
Density (20°C)	0.88 - 0.92 g/mL

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