Description

1,9-Dihydroxy-3,7-Dioxanonane, 2,2'-(Trimethylenedioxy)Diethanol is a specialized polyether diol compound, also known as a cyclic acetal derivative of triethylene glycol. This chemical serves as a versatile building block and intermediate, prized for its unique structure that combines hydroxyl and ether functionalities. It is essential for manufacturers in the polymer, pharmaceutical, and specialty chemical industries seeking to synthesize advanced materials with tailored properties. Its role as a precursor enables the creation of complex polymers, plasticizers, and functional additives.

Application

• Polymer Synthesis: A key monomer or chain extender for producing polyurethanes, polyesters, and other specialty polymers requiring specific flexibility and hydrophilicity.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs where its acetal and diol groups are valuable for conjugation and controlled release.
• Crosslinking Agent: Functions as a crosslinker in resin formulations, coatings, and adhesives to enhance network density and mechanical properties.
• Plasticizer and Solvent: Acts as a high-boiling point solvent or a co-plasticizer in polymer systems to improve processing and final product performance.
• Surface Active Agents: Serves as a precursor for non-ionic surfactants and emulsifiers used in industrial and cosmetic formulations.
• Chemical Research & Development: A valuable reagent in organic synthesis and material science R&D for creating novel compounds and functional materials.

Basic Information

Product Name	1,9-Dihydroxy-3,7-Dioxanonane, 2,2'-(Trimethylenedioxy)Diethanol
CAS No.	67439-82-1
Molecular Formula	C9H18O6
Molecular Weight	222.24 g/mol
Synonyms	2,2'-(Trimethylenedioxy)diethanol; 1,9-Dihydroxy-3,7-dioxanonane; Triethylene Glycol Formal; 3,6,9-Trioxa-1,11-undecanediol; 1,11-Dihydroxy-3,6,9-trioxaundecane; TEG Formal; Bis(2-hydroxyethyl) Trimethylene Formal; Acetaldehyde, cyclic formal with triethylene glycol
EINECS	Contact for details

Quality Control

Our production of 1,9-Dihydroxy-3,7-Dioxanonane adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. Certificates of Analysis (COA) documenting purity, physical characteristics, and other critical parameters are available upon request. We are committed to meeting the specific quality standards required for pharmaceutical intermediates and high-performance industrial applications.

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 to prevent moisture absorption, which can affect product quality and stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.455 - 1.465
Density (20°C)	1.10 - 1.20 g/mL

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