Description

4,7,10,13,16,19,22,25,28,31,34,37,40-Tridecaoxatritetracontanedioic Acid is a high-purity, long-chain polyether dicarboxylic acid derivative, serving as a critical building block for advanced material synthesis. Its unique structure, featuring a hydrophilic polyoxyethylene spacer and terminal carboxylic acid groups, makes it an essential precursor for creating functionalized polymers and surfactants with tailored properties. This compound is primarily utilized by R&D chemists and process engineers in the pharmaceutical, specialty polymer, and nanotechnology sectors for applications requiring precise molecular architecture and biocompatibility.

Application

• Pharmaceutical Intermediates: Key starting material for synthesizing PEGylated drug conjugates, prodrugs, and biodegradable polymer backbones for controlled drug delivery systems.
• Functional Polymer Synthesis: Serves as a difunctional monomer for producing polyesters, polyamides, and polyurethanes with built-in hydrophilicity and flexibility for coatings, adhesives, and hydrogels.
• Surface Modification & Linker Chemistry: Used to create heterobifunctional crosslinkers and spacers for bioconjugation, nanoparticle functionalization, and sensor surface engineering.
• Specialty Surfactants & Dispersants: Acts as a precursor for high-performance, non-ionic surfactants and dispersing agents used in demanding formulations for agrochemicals, paints, and electronics.
• Material Science Research: Employed in academic and industrial R&D for developing novel self-assembling materials, dendrimers, and supramolecular structures.

Basic Information

Product Name	4,7,10,13,16,19,22,25,28,31,34,37,40-Tridecaoxatritetracontanedioic Acid
CAS No.	2225903-66-0
Molecular Formula	C39H74O17
Molecular Weight	814.99 g/mol
Synonyms	PEG13-Dicarboxylic Acid; 3,6,9,12,15,18,21,24,27,30,33,36,39-Tridecaoxahentetracontanedioic Acid; α,ω-Dicarboxy-trideca(ethylene glycol); HOOC-PEG13-COOH; Poly(ethylene glycol) bis(carboxymethyl) ether (n≈13); 2,2'-(Ethane-1,2-diylbis(oxy))bis(acetic acid) extended PEG derivative; 13-EO Dicarboxylic Acid; Tridecaethylene glycol dicarboxylic acid
EINECS	Contact for details

Quality Control

Every batch of 4,7,10,13,16,19,22,25,28,31,34,37,40-Tridecaoxatritetracontanedioic Acid is manufactured under a strict quality management system. We employ advanced analytical techniques including NMR, HPLC, and mass spectrometry to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing batch-specific results are provided and can be tailored to meet specific customer or regulatory requirements, including those for GMP-grade applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere such as nitrogen or argon to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	White to off-white waxy solid or viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Acid Value (Titration)	Theoretical ± 5%
Residual Solvents (GC)	Meets ICH guidelines

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