Description

Octadecanedioic Acid Di(Trimethylsilyl) Ester is a high-purity, silylated derivative of octadecanedioic acid, designed for advanced synthetic applications. This compound serves as a crucial protected intermediate, offering enhanced solubility and stability in non-polar organic media compared to its parent diacid. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty polymer industries for the synthesis of complex molecules, lubricants, and high-performance materials.

Application

• Pharmaceutical Intermediate: Used as a protected building block in the multi-step synthesis of active pharmaceutical ingredients (APIs), particularly for introducing long-chain dicarboxylic acid motifs.
• Agrochemical Synthesis: Serves as a key intermediate in the production of specialized herbicides, fungicides, and plant growth regulators requiring specific aliphatic chain lengths.
• Polymer & Material Science: Employed in the development of specialty polyesters, polyamides, and lubricant additives, where the silyl ester groups facilitate controlled polymerization or functionalization.
• Organic Synthesis Reagent: Acts as a versatile reagent in research laboratories for introducing the C18 dicarboxylate unit under mild conditions, avoiding side reactions associated with free carboxylic acids.
• Cosmetic & Personal Care Ingredients: Utilized in the synthesis of high-value emollients, waxes, and texture-enhancing agents for premium formulations.

Basic Information

Product Name	Octadecanedioic Acid Di(Trimethylsilyl) Ester
CAS No.	22396-20-9
Molecular Formula	C24H52O4Si2
Molecular Weight	460.84 g/mol
Synonyms	1,18-Octadecanedioic Acid Bis(trimethylsilyl) Ester; Octadecanedioic Acid Bis(trimethylsilyl) Ester; Bis(trimethylsilyl) Octadecanedioate; TMS Ester of Octadecanedioic Acid; Silylated Octadecanedioic Acid; 1,18-Bis(trimethylsiloxy)-1,18-dioxooctadecane; Octadecanedioic Acid Di-TMS Ester
EINECS	Contact for details

Quality Control

Our Octadecanedioic Acid Di(Trimethylsilyl) Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory documentation needs.

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 (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after initial opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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