Description

Icosanedioic Acid Bis(2,3-Dihydroxypropyl) Ester is a high-purity, long-chain diol ester derived from eicosanedioic acid. This specialty chemical is valued for its bifunctional reactivity and ability to act as a versatile building block in advanced polymer synthesis. It is primarily sought by manufacturers in the polymer, coatings, and specialty chemical industries for developing high-performance materials with tailored properties.

Application

• Polymer Synthesis: Serves as a key monomer or chain extender for producing specialty polyesters, polyurethanes, and polycarbonates, imparting flexibility and hydrolytic stability.
• Coating Resins: Used in the formulation of high-performance industrial and protective coatings, contributing to enhanced durability, adhesion, and chemical resistance.
• Plasticizer & Modifier: Functions as a polymeric plasticizer or modifier for PVC and other thermoplastics to improve low-temperature performance and reduce migration.
• Lubricant & Grease Base Stock: Employed in the synthesis of synthetic esters for high-temperature lubricants and specialty greases.
• Adhesive & Sealant Formulations: Acts as a reactive diluent or modifier in polyurethane and epoxy-based adhesives and sealants.
• Pharmaceutical & Cosmetic Intermediates: Utilized as a precursor or intermediate in the synthesis of certain active pharmaceutical ingredients (APIs) and specialty cosmetic esters.

Basic Information

Product Name	Icosanedioic Acid Bis(2,3-Dihydroxypropyl) Ester
CAS No.	75569-35-6
Molecular Formula	C26H50O8
Molecular Weight	490.68 g/mol
Synonyms	1,20-Eicosanedioic Acid, Bis(2,3-dihydroxypropyl) Ester; Eicosanedioic Acid Diglycidyl Ester Diol; Docosanedioic Acid Diglycidyl Ester Diol (common name variant); Glycerol Derivative of Eicosanedioic Acid; Bis(2,3-dihydroxypropyl) Eicosanedioate; Long-chain Diol Diester; Polymeric Diol Ester Intermediate
EINECS	Contact for details

Quality Control

Our Icosanedioic Acid Bis(2,3-Dihydroxypropyl) Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by HPLC, identification by FT-IR, and control of key impurities like residual solvents and free acid content. Certificates of Analysis (COA) documenting full compliance with agreed specifications are provided with every shipment.

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 and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen) after opening to maintain product integrity and prevent moisture uptake and degradation.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	210 - 230 mg KOH/g
Water Content (KF)	≤ 0.5%
Melting Point	55 - 65 °C

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