Description

2-Oxepanone, Homopolymer, Ester With .Alpha.-Methyl-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl), Dihydrogen Phosphate, Magnesium Salt (1:1) is a specialized, high-purity polymeric phosphate ester salt designed for advanced formulation chemistry. This compound matters for its unique combination of polymeric structure and ionic functionality, offering controlled reactivity and enhanced stability in complex systems. It is primarily needed by manufacturers in the pharmaceutical, personal care, and specialty polymer industries seeking sophisticated excipients or performance additives.

Application

• Pharmaceutical Excipient: Used as a stabilizer, emulsifier, or controlled-release agent in topical and transdermal drug delivery systems.
• Personal Care Formulations: Acts as a skin-conditioning agent, emulsifier, or viscosity modifier in high-end creams, lotions, and serums.
• Polymer Additive: Serves as an internal lubricant, processing aid, or antistatic agent in specialty polymer production and compounding.
• Industrial Surfactant: Functions as a specialty surfactant or dispersing agent in demanding applications requiring compatibility with both aqueous and organic phases.
• Biomaterial Coating: Utilized in the surface modification of medical devices or implants to enhance biocompatibility and functionality.

Basic Information

Product Name	2-Oxepanone, Homopolymer, Ester With .Alpha.-Methyl-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl), Dihydrogen Phosphate, Magnesium Salt (1:1)
CAS No.	222638-71-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(ε-caprolactone) phosphate ester magnesium salt; PCL-PEG phosphate Mg salt; Caprolactone polymer phosphate ester magnesium complex; Magnesium poly(oxy-1,2-ethanediyl)-α-methyl-ω-hydroxy-poly(2-oxepanone) phosphate; Polycaprolactone-PEG phosphate magnesium salt; Macromolecular phosphate ester magnesium salt; PEG-PCL phosphate magnesium derivative
EINECS	Contact for details

Quality Control

Our production of 2-Oxepanone, Homopolymer, Ester With .Alpha.-Methyl-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl), Dihydrogen Phosphate, Magnesium Salt (1:1) adheres to a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters are available for every shipment. We support compliance with cGMP, ICH Q7, and relevant pharmaceutical excipient guidelines for qualified grades.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after initial opening to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white solid or viscous mass
Identification (IR)	Conforms to reference spectrum
Assay (Mg content)	Contact for details
Phosphate Content	Contact for details
Water Content (KF)	≤ 2.0%
Residual Solvents (GC)	Meets ICH Q3C limits
Heavy Metals	≤ 20 ppm
Microbial Limits	Contact for details

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