Description

1-Mercapto-11-Hydroxy-3,6,9-Trioxaundecane is a specialized bifunctional organic compound featuring both a terminal thiol (mercapto) group and a terminal hydroxyl group, linked by a polyether chain. This unique structure makes it a valuable heterobifunctional linker and building block for creating custom polymers, surface modifiers, and functionalized nanomaterials. It is particularly sought after by R&D and production teams in the pharmaceutical, advanced materials, and specialty chemical sectors. The compound, with CAS number 90952-27-5, offers precise control over material properties through its dual reactivity.

Application

• Polymer Modification & Functionalization: Acts as a chain transfer agent or crosslinker to introduce thiol or hydroxyl functionality into polymer backbones (e.g., PEG derivatives, polyurethanes).
• Bioconjugation & Pharmaceutical Intermediates: Serves as a heterobifunctional linker for coupling drugs, peptides, or fluorescent probes to carrier molecules like proteins or nanoparticles.
• Surface Engineering & Self-Assembled Monolayers (SAMs): Used to create tailored surfaces on gold (via thiol) or silicon (via hydroxyl) for sensors, biochips, and corrosion-resistant coatings.
• Nanomaterial Synthesis: Functionalizes quantum dots, metal nanoparticles, and carbon nanotubes to improve dispersion and provide attachment points for further chemistry.
• Adhesive & Sealant Formulations: Imparts improved adhesion and flexibility as a reactive modifier in epoxy, silicone, or acrylic-based systems.
• Lubricant & Fuel Additives: Employed as a precursor for synthesizing multifunctional additives that provide anti-wear and dispersancy properties.

Basic Information

Product Name	1-Mercapto-11-Hydroxy-3,6,9-Trioxaundecane
CAS No.	90952-27-5
Molecular Formula	C11H24O5S
Molecular Weight	268.37 g/mol
Synonyms	11-Mercapto-3,6,9-trioxaundecan-1-ol; 3,6,9-Trioxaundecane-1,11-dithiol (misnomer, correct is monothiol); α-Mercapto-ω-hydroxy tetraethylene glycol; Tetraethylene glycol monothiol; HO-PEG4-SH; Thiol-PEG4-alcohol; 2,5,8,11-Tetraoxatridecane-13-thiol-1-ol; 11-Hydroxy-3,6,9-trioxaundecane-1-thiol
EINECS	Contact for details

Quality Control

Our 1-Mercapto-11-Hydroxy-3,6,9-Trioxaundecane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and assay, NMR for structural confirmation, and Karl Fischer titration for water content. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment ensures material consistency for your critical R&D and production processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and degradation of the thiol group. Allow the 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 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.