Description

3,6,9,12,15,18,21,24,27,30-Decaoxadotriacontane-1,32-Diol is a high-purity polyethylene glycol (PEG) derivative, specifically a long-chain PEG diol, known for its excellent solubility, low toxicity, and versatile chemical functionality. This compound is a critical building block and intermediate in advanced material science and pharmaceutical development, valued for its ability to modify solubility, enhance biocompatibility, and act as a spacer or linker. It is essential for R&D and production teams in the pharmaceutical, biomedical, and specialty polymer industries seeking reliable, high-quality PEGylated intermediates.

Application

• Pharmaceutical Intermediate: Serves as a crucial linker or spacer in the synthesis of prodrugs, antibody-drug conjugates (ADCs), and PEGylated therapeutics to improve pharmacokinetics and reduce immunogenicity.
• Bioconjugation & Cross-linking: Used to functionalize proteins, peptides, and other biomolecules, enhancing their stability and solubility for diagnostic and therapeutic applications.
• Polymer Chemistry: Acts as a macrodiol initiator or chain extender in the synthesis of biodegradable block copolymers, hydrogels, and polyurethanes for controlled drug delivery and tissue engineering.
• Surface Modification: Employed to create hydrophilic, protein-resistant coatings on medical devices, nanoparticles, and biosensors to prevent non-specific binding (fouling).
• Cosmetic & Personal Care Formulations: Functions as a humectant, emulsifier, and viscosity modifier in high-performance skincare and haircare products.
• Lubricants & Functional Fluids: Used as a base or additive in specialty lubricants and heat transfer fluids due to its thermal stability and low volatility.

Basic Information

Product Name	3,6,9,12,15,18,21,24,27,30-Decaoxadotriacontane-1,32-Diol
CAS No.	6809-70-7
Molecular Formula	C₂₂H₄₆O₁₂
Molecular Weight	502.60 g/mol
Synonyms	PEG 1000 Diol; Polyethylene glycol 1000 diol; α,ω-Dihydroxypoly(oxy-1,2-ethanediyl); 1,32-Dihydroxy-3,6,9,12,15,18,21,24,27,30-decaoxadotriacontane; Poly(oxy-1,2-ethanediyl), α,ω-dihydroxy- (MW ~1000); Bis(hydroxyethyl) ether polyethylene glycol; HO-PEG1000-OH; Polyoxyethylene diol (n~22)
EINECS	Contact for details

Quality Control

Our 3,6,9,12,15,18,21,24,27,30-Decaoxadotriacontane-1,32-Diol is manufactured under a cGMP-compliant quality management system to ensure batch-to-batch consistency and traceability. Each lot undergoes rigorous analytical testing, including determination of hydroxyl value, molecular weight distribution, and purity assessment. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are provided with every shipment to support your regulatory and R&D requirements.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White waxy solid or viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (Hydroxyl Value)	105 - 120 mg KOH/g
Average Molecular Weight (GPC)	950 - 1050 g/mol
Polydispersity Index (PDI)	≤ 1.05
Water Content (KF)	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

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