Description

Hexanoic Acid, 2-Ethyl-, 35-Hydroxy-3,6,9,12,15,18,21,24,27,30,31-Undecaoxapentatriacont-1-Yl Ester is a specialized, high-molecular-weight polyethylene glycol (PEG) ester derivative of 2-ethylhexanoic acid. This compound is engineered to act as a highly effective solubilizer, emulsifier, and carrier for active ingredients in advanced formulations. It is primarily needed by manufacturers in the pharmaceutical, personal care, and specialty chemical industries for creating stable, water-soluble, or self-emulsifying drug delivery systems, cosmetic products, and functional polymer additives.

Application

• Pharmaceutical Excipient: Used as a solubilizing agent and bioavailability enhancer in self-emulsifying drug delivery systems (SEDDS) and solid dispersions for poorly water-soluble active pharmaceutical ingredients (APIs).
• Cosmetic & Personal Care Formulations: Functions as an effective emulsifier, emollient, and carrier for fragrances, vitamins, and other oil-soluble actives in creams, lotions, and serums.
• Polymer & Resin Modification: Acts as a plasticizer, lubricant, or compatibilizer in specialty polymer blends and resin systems to improve processing and final material properties.
• Industrial Surfactant: Serves as a non-ionic surfactant or wetting agent in specialty coatings, inks, and agrochemical formulations.
• Chemical Synthesis Intermediate: Utilized as a building block or functionalizing agent in the synthesis of more complex polymeric materials and dendrimers.

Basic Information

Product Name	Hexanoic Acid, 2-Ethyl-, 35-Hydroxy-3,6,9,12,15,18,21,24,27,30,31-Undecaoxapentatriacont-1-Yl Ester
CAS No.	97862-57-2
Molecular Formula	C41H82O14
Molecular Weight	799.1 g/mol
Synonyms	2-Ethylhexanoic Acid PEG Ester; PEG-11 2-Ethylhexanoate; Polyethylene Glycol (11) 2-Ethylhexanoate; 2-Ethylhexanoic Acid, Polyoxyethylene Ester; α-Hydro-ω-hydroxypoly(oxy-1,2-ethanediyl) 2-Ethylhexanoate; Polyoxyl 11 2-Ethylhexanoate; POE (11) 2-Ethylhexanoate; Ethohexadiol PEG Ester
EINECS	Contact for details

Quality Control

Our Hexanoic Acid, 2-Ethyl-, 35-Hydroxy-3,6,9,12,15,18,21,24,27,30,31-Undecaoxapentatriacont-1-Yl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting specifications suitable for pharmaceutical and cosmetic applications. Certificates of Analysis (COA) documenting key parameters such as assay, hydroxyl value, acid value, and residual solvents are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers should be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to prevent moisture uptake and degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	65 - 85 mg KOH/g
Water Content (KF)	≤ 1.0%
Residual Ethylene Oxide	≤ 1 ppm
Residual 1,4-Dioxane	≤ 10 ppm
Heavy Metals (as Pb)	≤ 10 ppm

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