Description

11-Bromo-1-Undecyne is a versatile terminal alkyne building block featuring a bromine atom at the 11-position. This bifunctional molecule is essential for organic synthesis, enabling efficient carbon-carbon bond formation and molecular chain extension via cross-coupling and click chemistry reactions. It is particularly valuable for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise, high-purity intermediates for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of active pharmaceutical ingredients (APIs), especially for compounds requiring long alkyl chain linkers or terminal alkyne functional groups.
• Agrochemical Synthesis: Used in the production of novel pesticides, herbicides, and plant growth regulators where its alkyne moiety allows for modular structure-activity relationship (SAR) exploration.
• Material Science & Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers, dendrimers, and functionalized surfaces via Huisgen cycloaddition (click chemistry).
• Liquid Crystal & OLED Research: Employed in the creation of advanced organic electronic materials and liquid crystal compounds, where its molecular structure contributes to desired mesomorphic and optoelectronic properties.
• Bioconjugation & Probe Development: Facilitates the labeling and modification of biomolecules (proteins, nucleic acids) for diagnostic assays, imaging probes, and targeted drug delivery systems.
• Organic Synthesis & Catalysis: A fundamental reagent in Sonogashira, Heck, and other palladium-catalyzed cross-coupling reactions to construct complex organic molecules for research and development.

Basic Information

Item	Details
Product Name	11-Bromo-1-Undecyne
CAS No.	71317-72-1
Molecular Formula	C₁₁H₁₉Br
Molecular Weight	231.17 g/mol
Synonyms	1-Undecyne, 11-bromo-; 11-Bromoundecyne; 11-Bromo-1-undecyne; 11-Bromoundec-1-yne; Bromoundecyne; Undecyn-1-yl bromide; Terminal bromoalkyne C11
EINECS	Contact for details

Quality Control

Every batch of 11-Bromo-1-Undecyne is produced and tested under a strict quality management system to ensure consistent purity and performance. We provide comprehensive Certificates of Analysis (COA) that detail key parameters such as assay, identity, and impurity profiles, verified by techniques including GC, HPLC, and NMR. Our commitment to reliable supply and traceability meets the stringent requirements of research and industrial-scale applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong acids and incompatible organic solvents. For long-term storage under an inert atmosphere (e.g., nitrogen or argon) is recommended to maintain product stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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