Description

3,6,9,12,15,18,21,24-Octaoxahexacosane-1,26-Diamine is a high-purity, hydrophilic polyether diamine featuring a long, flexible ethylene oxide spacer chain terminated by primary amine groups. This unique bifunctional structure makes it a valuable building block and crosslinking agent for synthesizing advanced polymers with tailored properties. It is primarily utilized by R&D chemists and process engineers in the specialty polymer, pharmaceutical, and surface modification sectors to create materials with enhanced hydrophilicity, flexibility, and reactivity.

Application

• Polymer Synthesis: A key monomer for producing hydrophilic polyurethanes, polyamides, and polyureas with applications in hydrogels, coatings, and elastomers.
• Bioconjugation & Drug Delivery: Used as a hydrophilic spacer or linker for modifying peptides, proteins, and drug molecules to improve solubility and pharmacokinetics.
• Surface Modification: Acts as a functionalizing agent for nanoparticles, silica, and other substrates to introduce amine groups for further chemical grafting.
• Crosslinking Agent: Employed in epoxy resin formulations and other thermosetting polymers to control crosslink density and impart flexibility.
• Chelating Ligand Synthesis: Serves as a precursor for creating macrocyclic or polymeric ligands with potential applications in metal ion sequestration.
• Personal Care & Cosmetics: A potential intermediate for synthesizing specialty surfactants and conditioning agents.

Basic Information

Product Name	3,6,9,12,15,18,21,24-Octaoxahexacosane-1,26-Diamine
CAS No.	82209-36-7
Molecular Formula	C18H40N2O8
Molecular Weight	412.52 g/mol
Synonyms	4,7,10,13,16,19,22,25-Octaoxaheptacosane-1,27-diamine; PEG-8 Diamine; Poly(ethylene glycol) bis(3-aminopropyl) terminated, average Mn ~400; α,ω-Bis(3-aminopropyl)octaethylene glycol; O,O'-Bis(3-aminopropyl)octaethylene glycol; Jeffamine® EDR-148 (analogous product); 3,6,9,12,15,18,21,24-Octaoxahexacosanedioic acid, 1,26-diamide (deprecated); Bis(3-aminopropyl) PEG-8
EINECS	Contact for details

Quality Control

Our 3,6,9,12,15,18,21,24-Octaoxahexacosane-1,26-Diamine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and titration, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Primary Amine Value	Contact for details
Color (APHA)	≤ 100

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