Description

1-Aza-2,5-Disilacyclopentane-1-Acetic Acid, -α-,2,2,5,5-Pentamethyl-, 2-(Trimethylsilyl)Ethyl Ester, (S)- (9Ci) is a high-purity, chiral organosilicon compound of significant interest in advanced synthetic chemistry. This product matters as a sophisticated building block and chiral auxiliary, enabling the stereoselective synthesis of complex molecules for research and development. It is primarily needed by pharmaceutical R&D laboratories, agrochemical innovators, and specialty chemical manufacturers focused on creating novel silicon-containing or optically active compounds.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in stereocontrolled synthesis.
• Agrochemical Synthesis: Used in the creation of novel, high-performance crop protection agents and pesticides with specific stereochemical requirements.
• Organosilicon Chemistry Research: Serves as a fundamental building block for exploring new silicon-nitrogen heterocycles and developing novel materials.
• Chiral Auxiliary/ Ligand Precursor: Its defined stereochemistry makes it valuable for constructing chiral catalysts or ligands used in asymmetric synthesis.
• Specialty Polymer Modification: Potential use in the synthesis of functionalized siloxane polymers or hybrid organic-inorganic materials with tailored properties.

Basic Information

Product Name	1-Aza-2,5-Disilacyclopentane-1-Acetic Acid, -α-,2,2,5,5-Pentamethyl-, 2-(Trimethylsilyl)Ethyl Ester, (S)- (9Ci)
CAS No.	139215-49-9
Molecular Formula	C13H29NO2Si3
Molecular Weight	327.62 g/mol
Synonyms	(S)-2-(Trimethylsilyl)ethyl 2,2,5,5-tetramethyl-1-(trimethylsilyl)-1-aza-2,5-disilacyclopentane-3-acetate; (S)-1-Aza-2,5-disilacyclopentane-1-acetic acid, α,2,2,5,5-pentamethyl-, 2-(trimethylsilyl)ethyl ester; (3S)-2,2,5,5-Tetramethyl-1-(trimethylsilyl)-1-aza-2,5-disilacyclopentane-3-acetic Acid 2-(Trimethylsilyl)ethyl Ester; (S)-TMS-Ethyl Ester of α,2,2,5,5-Pentamethyl-1-aza-2,5-disilacyclopentane-1-acetic Acid; Chiral Azadisilacyclopentane Ester; Silicon-Nitrogen Heterocycle Ester.
EINECS	Contact for details

Quality Control

Our 1-Aza-2,5-Disilacyclopentane-1-Acetic Acid, -α-,2,2,5,5-Pentamethyl-, 2-(Trimethylsilyl)Ethyl Ester, (S)- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure high chemical and isomeric purity suitable for demanding synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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