Description

(S)-n-1-Phenylethyl-N'-Triethoxysilylpropylurea CAS NO 68959-21-7 is a high-purity, chiral organosilane coupling agent featuring a urea linkage and a stereogenic center. This compound is engineered to provide superior surface adhesion and compatibility in advanced material formulations. It is essential for manufacturers in the specialty chemicals, advanced composites, and high-performance coatings sectors seeking to enhance interfacial bonding and material properties.

Application

• As a chiral selector or stationary phase modifier in high-performance liquid chromatography (HPLC) for enantiomeric separation.
• As a surface-modifying agent for silica, glass, and other inorganic fillers to improve dispersion and bonding within polymer matrices like epoxies and polyurethanes.
• In the synthesis of functionalized silanes and hybrid organic-inorganic materials for specialized coatings and adhesives.
• For the immobilization of chiral catalysts or ligands onto solid supports for heterogeneous asymmetric synthesis.
• As a key intermediate in the development of advanced composite materials for aerospace and automotive applications.
• In research and development of molecularly imprinted polymers (MIPs) and other selective recognition materials.

Basic Information

Product Name	(S)-n-1-Phenylethyl-N'-Triethoxysilylpropylurea
CAS No.	68959-21-7
Molecular Formula	C18H32N2O4Si
Molecular Weight	368.55 g/mol
Synonyms	(S)-1-Phenylethyl-3-(3-triethoxysilylpropyl)urea; N-[(S)-1-Phenylethyl]-N'-[3-(triethoxysilyl)propyl]urea; (S)-N-1-Phenylethyl-N'-triethoxysilylpropylurea; Urea, N-[(1S)-1-phenylethyl]-N'-[3-(triethoxysilyl)propyl]-; (S)-Ureidopropyltriethoxysilane; (S)-UPTES; Chiral ureido silane; (S)-1-PEA-ureido-PTES
EINECS	Contact for details

Quality Control

Our (S)-n-1-Phenylethyl-N'-Triethoxysilylpropylurea is produced under stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high chiral purity and chemical consistency. A detailed Certificate of Analysis (COA) providing specifications for assay, enantiomeric excess, and impurity profiles is supplied with each shipment to guarantee reliable performance in your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (Karl Fischer)	≤ 0.5%

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