Description

11-Tritylmercapto-Undecanoic Acid is a specialized, high-purity organic compound featuring a long alkyl chain terminated with a carboxylic acid and protected by a trityl (triphenylmethyl) thioether group. This unique structure makes it a valuable intermediate for synthesizing self-assembled monolayers (SAMs) on gold and other noble metal surfaces. It is essential for researchers and manufacturers in nanotechnology, surface science, and advanced materials development who require precise control over surface properties, such as wettability, corrosion resistance, and bio-functionalization.

Application

• Surface Chemistry & Nanotechnology: A key precursor for forming highly ordered, carboxylic acid-terminated self-assembled monolayers (SAMs) on gold, silver, and platinum substrates.
• Biosensor Development: Used to create functionalized surfaces for immobilizing biomolecules like proteins, DNA, or enzymes, enabling the fabrication of sensitive diagnostic and research tools.
• Corrosion Inhibition: Forms protective molecular layers on metal surfaces, acting as a barrier against environmental degradation.
• Microelectronics & Lithography: Serves in the patterning and modification of surfaces at the nanoscale for advanced electronic components and devices.
• Material Science Research: Employed in fundamental studies of interfacial phenomena, molecular recognition, and the creation of model surfaces with tailored chemical functionality.
• Biocompatible Coatings: Used to engineer surfaces for medical implants and devices to control cell adhesion and improve biocompatibility.

Basic Information

Product Name	11-Tritylmercapto-Undecanoic Acid
CAS No.	202462-83-7
Molecular Formula	C30H36O2S
Molecular Weight	460.67 g/mol
Synonyms	11-[(Triphenylmethyl)thio]undecanoic acid; 11-(Tritylthio)undecanoic Acid; Undecanoic acid, 11-[(triphenylmethyl)thio]-; Trityl-S-undecanoic acid; 11-TTUA; SAM precursor for gold surfaces; ω-Tritylthio undecanoic acid; TUD Acid
EINECS	Contact for details

Quality Control

Our 11-Tritylmercapto-Undecanoic Acid is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity, essential for reproducible surface chemistry. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to ISO 9001 quality management standards, and our processes are designed to meet the rigorous demands of research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) for long-term stability. This compound is hygroscopic (moisture-sensitive); ensure the container is sealed under an inert atmosphere (e.g., nitrogen or argon) after each use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 0.5%

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