Description

(1-Mercaptoundec-11-Yl)Hexa(Ethylene Glycol) is a specialized thiol-terminated polyethylene glycol (PEG) derivative, a key building block in advanced material science and nanotechnology. Its core value lies in its unique bifunctional structure, combining a long alkyl chain for hydrophobicity with a hydrophilic hexa(ethylene glycol) spacer and a terminal thiol group for robust surface attachment. This compound is essential for researchers and manufacturers developing self-assembled monolayers (SAMs), biosensors, and biocompatible surface coatings, where precise control over interfacial properties is critical.

Application

• Surface Functionalization & Self-Assembled Monolayers (SAMs): The terminal thiol group enables strong, covalent bonding to gold, silver, and other metal surfaces, creating ordered monolayers for controlled wettability, corrosion inhibition, and molecular recognition.
• Biosensor & Diagnostic Device Fabrication: Used to create non-fouling, biocompatible interfaces on sensor surfaces. The PEG spacer resists non-specific protein adsorption, enhancing the sensitivity and specificity of detection platforms.
• Nanoparticle & Quantum Dot Stabilization: Acts as a ligand to passivate and functionalize the surface of metallic or semiconductor nanoparticles, improving colloidal stability in aqueous solutions and providing a handle for further bioconjugation.
• Bioconjugation & Drug Delivery Systems: Serves as a heterobifunctional linker for attaching biomolecules (peptides, proteins, oligonucleotides) to surfaces or other molecules via the reactive thiol group, useful in targeted delivery and therapeutic applications.
• Lubricant & Additive Synthesis: The molecular structure can be incorporated as a functional moiety in specialty lubricants and polymer additives to modify surface interactions and reduce friction.

Basic Information

Product Name	(1-Mercaptoundec-11-Yl)Hexa(Ethylene Glycol)
CAS No.	130727-44-5
Molecular Formula	C23H48O6S
Molecular Weight	452.70 g/mol
Synonyms	11-Mercaptoundecyl hexa(ethylene glycol) ether; 1-Mercapto-11-(hexaethylene glycol)undecane; HS-C11H22-O-(CH2CH2O)6-H; Thiol-terminated hexa(ethylene glycol) undecane; OEG6 thiol C11; EG6 Thiol; 11-(2-(2-(2-(2-(2-(2-Hydroxyethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)undecyl mercaptan; Heterobifunctional PEG thiol (C11 spacer)
EINECS	Contact for details

Quality Control

Our (1-Mercaptoundec-11-Yl)Hexa(Ethylene Glycol) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity for research and industrial applications. Each lot undergoes comprehensive analytical characterization, including HPLC for purity and assay, NMR for structural confirmation, and thiol titration for functional group quantification. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all relevant specifications.

Storage

Preserve in a tightly closed container, protected from light. This material is easily oxidized (store under inert atmosphere). For long-term stability, store under an inert gas (argon or nitrogen) at 2-8°C. Allow the sealed container to reach room temperature before opening to prevent moisture condensation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Assay (Thiol Titration)	≥ 90.0%
Water Content (KF)	≤ 0.5%

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