Description

3,6,9,12,15-Pentaoxaheptadecane-1,17-Diyl Bis-Bromide is a high-purity, bifunctional alkylating agent featuring a polyether spacer chain terminated by reactive bromomethyl groups. This compound matters for its unique ability to act as a versatile linker or spacer in the synthesis of complex molecules, enabling the precise construction of molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries for applications such as polymer modification, dendrimer synthesis, and the creation of functionalized surfaces and ligands.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), prodrugs, and targeted drug delivery systems.
• Polymer & Material Science: Used as a cross-linking agent or chain extender in the production of specialty polymers, hydrogels, and polyether-based materials.
• Dendrimer & Macromolecule Synthesis: Serves as a core branching unit or spacer in the controlled, stepwise construction of dendrimers and other complex macromolecular structures.
• Surface Functionalization: Employed to introduce reactive bromoalkyl groups onto silica, polymers, or other surfaces for subsequent conjugation with amines, thiols, or other nucleophiles.
• Ligand & Chelator Preparation: Facilitates the synthesis of chelating agents, crown ether analogs, and ligands for catalysis or metal ion binding.
• Agrochemical Research: Intermediate in the development of novel herbicides, pesticides, and plant growth regulators requiring specific spacer functionalities.

Basic Information

Product Name	3,6,9,12,15-Pentaoxaheptadecane-1,17-Diyl Bis-Bromide
CAS No.	67705-77-5
Molecular Formula	C12H24Br2O5
Molecular Weight	408.13 g/mol
Synonyms	1,17-Dibromo-3,6,9,12,15-pentaoxaheptadecane; Tetraethylene Glycol Dibromide; TEG-Br2; 2,2'-(Ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl) bis(2-bromoacetate) (alternative representation); Bis(2-bromoethyl) tetraethylene glycol ether; Poly(ethylene glycol) bis(2-bromoethyl) ether (n~4); Br-PEG4-Br; PEG4 dibromide
EINECS	Contact for details

Quality Control

Our 3,6,9,12,15-Pentaoxaheptadecane-1,17-Diyl Bis-Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and process chemistry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. Due to its light-sensitive nature and reactive bromine groups, prolonged exposure to light or moisture should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index	1.480 - 1.490
Density	~1.45 g/cm³

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