Description

11-Amino-1-Undecanethiol is a bifunctional organic compound featuring both a terminal thiol (-SH) and a primary amine (-NH2) group, separated by a long, flexible alkyl chain. This unique structure makes it a versatile building block for creating self-assembled monolayers (SAMs) and functionalized surfaces in advanced materials science. It is particularly valuable for researchers and manufacturers in the nanotechnology, biosensor, and pharmaceutical development sectors who require precise surface modification and controlled molecular attachment.

Application

• Surface Functionalization & Self-Assembled Monolayers (SAMs): The primary application is forming ordered molecular films on gold, silver, and other metal surfaces for creating tailored surface properties.
• Biosensor & Diagnostic Device Fabrication: Used to immobilize biomolecules (e.g., proteins, DNA) onto sensor surfaces, enabling specific biological detection.
• Nanoparticle Capping & Stabilization: Acts as a ligand to functionalize and stabilize metallic nanoparticles (e.g., gold nanoparticles) for biomedical and catalytic applications.
• Corrosion Inhibition & Adhesion Promotion: The thiol group binds to metal surfaces, while the amine group can interact with polymer coatings, enhancing adhesion and providing a protective layer.
• Chemical Linker & Spacer Arm: The 11-carbon chain serves as a flexible spacer in bioconjugation and the synthesis of complex molecular architectures.
• Research & Development: A key reagent in academic and industrial R&D for studying surface chemistry, molecular electronics, and novel material interfaces.

Basic Information

Product Name	11-Amino-1-Undecanethiol
CAS No.	143339-58-6
Molecular Formula	C₁₁H₂₅NS
Molecular Weight	203.39 g/mol
Synonyms	11-Amino-1-mercaptoundecane; 11-Aminoundecyl mercaptan; 11-Mercapto-1-aminoundecane; 1-Amino-11-mercaptoundecane; Amino-undecanethiol; 11-Amino-1-undecanethiol hydrochloride (salt form); 11-Amino-1-undecanethiol, HCl; 11-Amino-1-undecanethiol, free base
EINECS	Contact for details

Quality Control

Our 11-Amino-1-Undecanethiol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and FT-IR. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) and easily oxidized nature, store under an inert atmosphere (argon or nitrogen) at 2-8°C. For long-term stability, keep the container in a cool, dry, and well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white solid or waxy solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical 97-99%)
Melting Point	Contact for details

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