Description

2-(2-Bromoisobutyryloxy)Undecyl Thiol is a specialized bifunctional chemical compound featuring both a thiol group and a bromoisobutyrate group, making it a highly effective chain transfer agent (CTA) and surface-active initiator. This unique structure is critical for controlling polymer architecture and molecular weight in advanced polymerization techniques. It is primarily utilized by R&D scientists and production chemists in the polymer and materials science industries for developing novel coatings, adhesives, and functionalized nanomaterials with precise properties.

Application

• Reversible Addition-Fragmentation Chain-Transfer (RAFT) Polymerization: Serves as a highly efficient chain transfer agent for the controlled synthesis of polymers with narrow molecular weight distributions.
• Surface-Initiated Polymerization (SIP): Used to create self-assembled monolayers (SAMs) on gold, silver, and other metal surfaces for grafting polymer brushes.
• Functional Nanoparticle Synthesis: Enables the surface functionalization of quantum dots, metallic nanoparticles, and carbon nanotubes to impart specific chemical reactivity or dispersibility.
• Block Copolymer Production: Essential for synthesizing well-defined block copolymers used in advanced lithography, drug delivery systems, and thermoplastic elastomers.
• Bioconjugation and Biointerface Engineering: Facilitates the covalent attachment of polymers to biomolecules or the creation of non-fouling surfaces for medical devices and biosensors.
• Specialty Adhesives and Coatings: Used to develop next-generation pressure-sensitive adhesives, protective coatings, and ink formulations with tailored performance characteristics.

Basic Information

Product Name	2-(2-Bromoisobutyryloxy)Undecyl Thiol
CAS No.	404857-69-8
Molecular Formula	C15H29BrO2S
Molecular Weight	353.36 g/mol
Synonyms	11-Mercaptoundecyl 2-bromo-2-methylpropanoate; 2-Bromo-2-methylpropanoic Acid 11-Mercaptoundecyl Ester; ω-Mercaptoundecyl 2-Bromoisobutyrate; BIBUThiol; 11-((2-Bromo-2-methylpropanoyl)oxy)undecane-1-thiol; C11 BIB Thiol; Undecyl Bromoisobutyrate Thiol; Chain Transfer Agent for RAFT Polymerization
EINECS	Contact for details

Quality Control

Our 2-(2-Bromoisobutyryloxy)Undecyl Thiol is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity, which is paramount for reproducible polymerization results. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as purity, identity, and impurity profile. We adhere to relevant quality management standards to support our customers in research and scale-up activities.

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. Keep the container in a cool, dry, and well-ventilated place away from strong oxidizing agents.

Specification

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

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