Description

Bis-Peg2-T-Butyl Ester CAS NO 1611468-28-0 is a specialized polyethylene glycol (PEG)-based ester derivative featuring tert-butyl protecting groups. This compound is valued for its role as a versatile building block and linker in advanced organic synthesis, particularly in the development of complex molecules. It is primarily sought after by researchers and manufacturers in the pharmaceutical, biotechnology, and advanced materials sectors for applications in drug discovery, bioconjugation, and polymer chemistry.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, especially where solubility or controlled release is desired.
• Bioconjugation Linker: Used to attach drugs, dyes, or other functional molecules to proteins, antibodies, or nanoparticles, facilitating targeted delivery and diagnostics.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the creation of biodegradable and biocompatible PEG-based hydrogels and polymers.
• Protecting Group Strategy: The tert-butyl ester groups provide temporary protection for carboxylic acids during multi-step synthetic sequences.
• Material Science: Employed in the surface modification of materials to enhance hydrophilicity, reduce fouling, and improve biocompatibility.
• Research & Development: A valuable tool compound in academic and industrial R&D for exploring new synthetic pathways and novel compound libraries.

Basic Information

Product Name	Bis-Peg2-T-Butyl Ester
CAS No.	1611468-28-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	1,8-Bis(tert-butoxycarbonyl)-3,6-dioxaoctane; Di-tert-butyl PEG2-dicarboxylate; Bis(tert-butyl) PEG2 ester; 2,2'-(Ethane-1,2-diylbis(oxy))diacetic acid di-tert-butyl ester; PEG2-di-t-butyl ester; α,ω-Bis(tert-butoxycarbonyl)-3,6-dioxaoctane; tert-Butyl PEG2-dicarboxylate
EINECS	Contact for details

Quality Control

Our Bis-Peg2-T-Butyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. 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 place. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Recommended long-term storage at 2-8°C.

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.