Description

11,15-Dimethyl-7,10,13,16,19-Pentaoxapentacosane-9,17-Diol is a specialized polyether diol compound with a precisely defined molecular structure. This chemical is valued for its dual hydroxyl functionality and polyether chain, making it a versatile intermediate and performance additive in advanced formulations. It is primarily sought by manufacturers in the polymer, surfactant, and specialty chemical industries for applications requiring controlled hydrophilicity, chain extension, or modification of material properties. The compound, identified by CAS number 73179-35-8, is supplied with a commitment to consistent quality and reliable supply chain support for global B2B partners.

Application

• Polymer Synthesis: Acts as a chain extender or building block in the production of polyurethanes, polyesters, and other specialty polymers, influencing flexibility and hydrophilicity.
• Surfactants & Emulsifiers: Serves as a key intermediate for synthesizing non-ionic surfactants with tailored HLB values for use in agrochemicals, paints, and cleaning products.
• Pharmaceutical Excipients: Used in the development of drug delivery systems, where its polyether structure can aid in solubility enhancement or as a component in biodegradable matrices.
• Lubricant & Fuel Additives: Functions as a performance additive to improve lubricity, detergency, or stability in industrial lubricants and functional fluids.
• Crosslinking Agent: Utilized in coatings, adhesives, and sealants to modify cure profiles and final network properties, enhancing durability and chemical resistance.
• Chemical Intermediate: Provides a reactive platform for further chemical modifications, including esterification and etherification, to create custom derivatives for R&D and production.

Basic Information

Product Name	11,15-Dimethyl-7,10,13,16,19-Pentaoxapentacosane-9,17-Diol
CAS No.	73179-35-8
Molecular Formula	C₂₅H₅₂O₇
Molecular Weight	464.68 g/mol
Synonyms	9,17-Dihydroxy-11,15-dimethyl-7,10,13,16,19-pentaoxapentacosane; Poly(oxy-1,2-ethanediyl), α,α'-[2,2-bis(hydroxymethyl)-1,3-propanediyl]bis[ω-methyl-; PEG Derivative of Pentaerythritol Ethoxylate; 2,2-Bis[({2-[2-(2-methoxyethoxy)ethoxy]ethoxy}methyl)]propane-1,3-diol; Pentaerythritol Ethoxylate (9 EO); Bis-MPA-(EO)9; A multi-armed polyethylene glycol derivative.
EINECS	Contact for details

Quality Control

Our 11,15-Dimethyl-7,10,13,16,19-Pentaoxapentacosane-9,17-Diol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and checks for key impurities like moisture and residual solvents, to ensure it meets precise specifications. A Certificate of Analysis (COA) documenting these results is provided with every shipment. We support compliance with relevant global regulatory frameworks, and custom purity grades (e.g., >98%, >99%) are available to meet specific application needs.

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 opening to minimize exposure to atmospheric moisture. Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Hydroxyl Value	Contact for details
Specific Gravity (20°C)	~1.10 - 1.15

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