Description

Bis(Trimethylsilyl)Sebacate is a high-purity organosilicon compound, specifically a silyl ester of sebacic acid. This specialty chemical serves as a versatile intermediate and functional additive, valued for its ability to impart unique properties to advanced material formulations. It is primarily sought after by manufacturers in the silicone polymer, pharmaceutical, and specialty lubricant industries for applications requiring thermal stability and hydrophobic characteristics.

Application

• As a key monomer or chain extender in the synthesis of high-performance silicone polymers and copolymers.
• As a surface-modifying agent or hydrophobic additive in coatings, resins, and composite materials.
• As a protected intermediate in multi-step organic synthesis, particularly in pharmaceutical and agrochemical research.
• As a high-temperature base fluid or additive in specialty lubricants and greases.
• As a plasticizer or processing aid for high-temperature engineering plastics.
• In the formulation of release agents and mold-making materials.

Basic Information

Product Name	Bis(Trimethylsilyl)Sebacate
CAS No.	18408-42-9
Molecular Formula	C16H36O4Si2
Molecular Weight	348.63 g/mol
Synonyms	Sebacic Acid Bis(trimethylsilyl) Ester; Decanedioic Acid Bis(trimethylsilyl) Ester; 1,10-Bis(trimethylsiloxy)decane-1,10-dione; Bis(trimethylsiloxy)sebacoyl; TMS-Sebacate; Bis(TMS) Sebacate; Sebacoyl Bis(trimethylsilyl) Ether
EINECS	242-283-5

Quality Control

Our Bis(Trimethylsilyl)Sebacate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The product is moisture-sensitive; keep the container tightly sealed when not in use to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.435 - 1.445
Density (20°C)	0.92 - 0.96 g/mL

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