Description

Ditrimethylolpropane (CAS No. 23235-61-2) is a high-purity polyol compound with the molecular formula C₁₂H₂₆O₅, widely utilized in advanced polymer synthesis and specialty chemical applications. This versatile diol, chemically designated as 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol, features dual hydroxyl-functionalized trimethylolpropane units linked by an ether bridge, offering exceptional reactivity for crosslinking and chain extension. Its symmetrical structure and high hydroxyl value (theoretical MW: 250.34 g/mol) make it ideal for producing alkyd resins, polyurethanes, and radiation-curable coatings with enhanced hardness and chemical resistance. Available in crystalline or flake form with >98% purity, it exhibits low volatility (bp: ~300°C) and excellent solubility in polar solvents. Suitable for R&D through industrial-scale applications, it is packaged under inert gas to maintain stability. Synonyms include Di-Trimethylolpropane and 2,2′-(oxydimethanediyl)bis(2-ethylpropane-1,3-diol).

Properties

• CAS Number: 23235-61-2
• Complexity: 167
• IUPAC Name: 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethyl-propane-1,3-diol
• InChI: InChI=1S/C12H26O5/c1-3-11(5-13,6-14)9-17-10-12(4-2,7-15)8-16/h13-16H,3-10H2,1-2H3
• InChI Key: WMYINDVYGQKYMI-UHFFFAOYSA-N
• Exact Mass: 250.17802393
• Molecular Formula: C12H26O5
• Molecular Weight: 250.33
• SMILES: CCC(CO)(CO)COCC(CC)(CO)CO
• Topological: 90.2
• Monoisotopic Mass: 250.17802393
• Physical Description: Liquid; Dry Powder; Pellets or Large Crystals
• Synonyms: 23235-61-2, Ditrimethylolpropane, Di-Trimethylolpropane, 2,2′-(oxydimethanediyl)bis(2-ethylpropane-1,3-diol), UNII-53E6MN32Z5, DTXSID9044879, 53E6MN32Z5, EINECS 245-509-0, BISTRIMETHYLOLPROPANE, DITRIMETHYLOL PROPANE, DTXCID7024879, EC 245-509-0, BIS(1,1-DIMETHYLOLPROPYL)DIMETHYL ETHER, 3,3,7,7-TETRAKIS(HYDROXYMETHYL)-5-OXANONANE, 2,2′-(OXYDIMETHYLENE)BIS(2-ETHYL-1,3-PROPANEDIOL), 245-509-0, Di(trimethylolpropane), Di(trimethylol propane), 1,3-Propanediol, 2,2′-[oxybis(methylene)]bis[2-ethyl-, 2,2′-(Oxybis(methylene))bis(2-ethylpropane-1,3-diol), 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol, 2,2′-(Oxybis(methylene))bis(2-ethylpropane-1,3-diol)(Flakes or Chunks), 2-ethyl-2-{[2-ethyl-3-hydroxy-2-(hydroxymethyl)propoxy]methyl}propane-1,3-diol, 1,3-Propanediol, 2,2′-(oxybis(methylene))bis(2-ethyl-, MFCD00192117, SCHEMBL45482, Di(trimethylolpropane), 97%, CHEMBL3188200, Di(trimethylolpropane), >/=98%, Tox21_301690, AKOS015915906, NCGC00256055-01, AS-69320, CAS-23235-61-2, CS-0320640, D4538, NS00004595, E78830, Bis[2-ethyl-2,2-bis(hydroxymethyl)ethyl] Ether, 2,2′-Oxybis(methylene)bis(2-ethyl-1,3-propanediol), Q22829780

Application

Ditrimethylolpropane serves as a key monomer in synthesizing hyperbranched polyesters for coatings with superior scratch resistance. It is employed in UV-curable ink formulations due to its rapid curing kinetics and improved adhesion. The compound also acts as a crosslinker in polyurethane elastomers, enhancing tensile strength and thermal stability. In lubricant additives, it modifies viscosity indices while maintaining oxidative stability.

Safety and Hazards

GHS Hazard Statements

• Not Classified
• Reported as not meeting GHS hazard criteria by 272 of 272 companies. For more detailed information, please visit ECHA C&L website.

Hazard Classes and Categories

• Not Classified

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