Description

Mpeg11-Oh CAS NO 2168540-65-4 is a high-purity, monodisperse polyethylene glycol (PEG) derivative featuring a terminal hydroxyl group. This compound is a critical building block in bioconjugation and pharmaceutical formulation, enabling precise control over solubility, pharmacokinetics, and biodistribution. It is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and advanced materials sectors who require well-defined, functional PEG linkers for drug delivery systems, diagnostic agents, and surface modification.

Application

• Bioconjugation Linker: Used for PEGylating peptides, proteins, and oligonucleotides to enhance stability and reduce immunogenicity.
• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of prodrugs and targeted therapeutic agents.
• Polymer Chemistry: Acts as a macroinitiator or monomer for creating functional, biocompatible polymers and hydrogels.
• Diagnostic Reagents: Employed in the development of contrast agents and fluorescent probes for imaging applications.
• Surface Functionalization: Used to modify nanoparticles and medical device surfaces to improve biocompatibility and stealth properties.
• Cross-linking Agent: Facilitates the formation of stable networks in polymer and biomaterial synthesis.

Basic Information

Product Name	Mpeg11-Oh
CAS No.	2168540-65-4
Molecular Formula	C23H48O12 (Typical for MPEG-OH, 11 ethylene oxide units)
Molecular Weight	~516.6 g/mol
Synonyms	Methoxy-PEG11-alcohol; α-Methoxy-ω-hydroxyundeca(ethylene glycol); MPEG11-OH; Poly(ethylene glycol) methyl ether (Mn ~550); 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol; PEG Methyl Ether (11 EO units); Monomethoxy Polyethylene Glycol 550
EINECS	Contact for details

Quality Control

Our Mpeg11-Oh is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and GPC, to ensure high purity, precise molecular weight, and low levels of diols and peroxides. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label or COA. This product is hygroscopic (moisture-sensitive). Allow the sealed container to reach ambient temperature before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Molecular Weight (GPC)	500 - 550 g/mol
Polydispersity Index (PDI)	≤ 1.05
Water Content (KF)	≤ 0.5%
Peroxide Value	≤ 0.5 meq/kg

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