Description

1-Undecanethiol is a versatile, long-chain alkanethiol with significant utility as a surface modifier and chemical intermediate. Its primary value lies in its ability to form self-assembled monolayers (SAMs) on metal surfaces, particularly gold, which is critical for creating controlled interfaces in advanced materials. This compound is essential for researchers and manufacturers in the nanotechnology, electronics, and specialty polymer sectors who require precise surface engineering and functionalization. Its specific chain length offers a balance of hydrophobicity and molecular ordering for tailored material properties.

Application

• Formation of self-assembled monolayers (SAMs) on gold and other metal surfaces for corrosion inhibition and surface passivation.
• Surface functionalization of nanoparticles and quantum dots for biomedical imaging and targeted drug delivery systems.
• Modification of electrode surfaces in biosensors and electrochemical devices to improve selectivity and reduce fouling.
• Intermediate in the synthesis of specialty surfactants, lubricant additives, and polymer stabilizers.
• Building block for organic synthesis, particularly in the preparation of compounds with sulfur-containing functional groups.
• Surface patterning and lithography in microelectronics and nanofabrication processes.
• Component in the formulation of adhesives and coatings to enhance specific surface properties.

Basic Information

Product Name	1-Undecanethiol
CAS No.	5332-52-5
Molecular Formula	C11H24S
Molecular Weight	188.37 g/mol
Synonyms	Undecane-1-thiol; n-Undecanethiol; n-Undecanyl mercaptan; 1-Mercaptoundecane; Undecyl mercaptan; HS(CH2)10CH3; 11-Mercapto-1-undecanethiol; n-Undecylthiol
EINECS	226-220-8

Quality Control

Our 1-Undecanethiol is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets the high standards required for research and industrial applications. A Certificate of Analysis (COA) detailing specific results for purity, appearance, and other critical parameters is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized and should be handled with care to minimize exposure to air.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.84 - 0.86 g/mL
Refractive Index (n20D)	1.458 - 1.462

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