Description

Nonaethylenel Di(p-Toluenesulfonate) is a specialized chemical intermediate belonging to the class of polyethylene glycol (PEG) derivatives functionalized with tosylate groups. This compound matters as a versatile building block for the controlled synthesis of complex polymers and dendrimers, offering precise chain length and reactive end-group functionality. It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, advanced materials, and biotechnology sectors for applications such as polymer cross-linking and the development of drug delivery systems.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs, polymer-drug conjugates, and controlled-release formulations.
• Polymer Chemistry: Serves as a key monomer or cross-linking agent for creating hydrogels, star polymers, and functionalized PEG-based materials.
• Bioconjugation: Acts as a linker molecule for attaching peptides, proteins, or other biomolecules to carriers or surfaces.
• Dendrimer Synthesis: Provides a defined, multi-arm structure for the stepwise construction of dendritic macromolecules.
• Surface Modification: Used to introduce hydrophilic PEG chains onto nanoparticles or medical devices to improve biocompatibility and reduce fouling.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new polymeric architectures and functional materials.

Basic Information

Product Name	Nonaethylenel Di(p-Toluenesulfonate)
CAS No.	109635-64-5
Molecular Formula	C32H50O14S2
Molecular Weight	722.86 g/mol
Synonyms	PEG9 Ditosylate; Nonapropylene Glycol Ditosylate; 1,11-Bis(p-toluenesulfonyloxy)-3,6,9-trioxaundecane; Diethylene Glycol Nonamer Ditosylate; Nonaethylene Glycol Ditosylate; p-Toluenesulfonic Acid Nonaethylene Glycol Diester; 2,2'-(Ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl) bis(4-methylbenzenesulfonate) (long-chain analog); Poly(ethylene glycol) ditosylate (n~9)
EINECS	Contact for details

Quality Control

Our Nonaethylenel Di(p-Toluenesulfonate) is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid or viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines

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