Description

17,18-Dibromo-2,5,8,11,14-Pentaoxabicyclo[13.4.0]Nonadeca-1(19),15,17-Triene is a specialized brominated crown ether derivative, a high-value intermediate prized for its unique macrocyclic structure and halogen functionality. This compound matters for its role as a precise building block in advanced organic synthesis and materials science, where its ability to complex with specific ions and undergo selective reactions is critical. It is primarily needed by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel catalysts, sensors, and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of complex drug molecules, particularly those requiring specific macrocyclic architectures or bromine handles for further functionalization.
• Catalyst & Ligand Synthesis: Used to create sophisticated crown ether-based ligands and phase-transfer catalysts for enantioselective synthesis and reaction rate enhancement.
• Chemical Sensor Development: Acts as a core component in the design of ion-selective electrodes and fluorescent sensors due to its ion-binding properties within the polyether cavity.
• Advanced Material Research: Employed in the synthesis of functional polymers and dendrimers with tailored properties for electronic or optical applications.
• Agrochemical Research: Utilized as an intermediate in creating novel active ingredients with specific biological activity profiles.
• Academic & R&D Laboratories: A valuable reagent for fundamental studies in supramolecular chemistry and host-guest interactions.

Basic Information

Item	Details
Product Name	17,18-Dibromo-2,5,8,11,14-Pentaoxabicyclo[13.4.0]Nonadeca-1(19),15,17-Triene
CAS No.	63862-55-5
Molecular Formula	C15H22Br2O5
Molecular Weight	442.14 g/mol
Synonyms	Dibromo-dibenzo-18-crown-6; 4,4'-(4,13-Dioxa-1,7,10,16-tetraazabicyclo[8.8.8]hexacosane-1,7,10,16-tetrayl)bis(5-bromobenzene-1,2-diol) (related structural name); 17,18-Dibromodibenzo-18-crown-6; Dibenzo-18-crown-6, 17,18-dibromo-; Brominated crown ether 63862-55-5; DB18C6-Br2; 1,2-Bis[2-(2-bromo-5-hydroxyphenoxy)ethoxy]benzene (possible linear precursor form).
EINECS	Contact for details

Quality Control

Our 17,18-Dibromo-2,5,8,11,14-Pentaoxabicyclo[13.4.0]Nonadeca-1(19),15,17-Triene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets exacting R&D and production standards. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep the container sealed to protect this light-sensitive material from moisture and atmospheric contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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