1,1,1-Tris(hydroxymethyl)propane

• CAT Number: R022382
• CAS Number: 77-99-6
• Molecular Formula: C6H14O3
• Molecular Weight: 134.18
• Purity: ≥95%
• Synonyms: 1,1,1-Tri(hydroxymethyl)propane; 1,1,1-Trimethylolpropane; 2,2-Bis(hydroxymethyl)-1-butanol; 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol; 2-Ethyl-2-(hydroxymethyl)propanediol; Addolink TR; Ethriol; Ethyltrimethylolmethane; Ettriol; NSC 3576; RC Crossli
• Storage: -20°C
• IUPAC Name: 2-ethyl-2-(hydroxymethyl)propane-1,3-diol
• InChI: InChI=1S/C6H14O3/c1-2-6(3-7,4-8)5-9/h7-9H,2-5H2,1H3
• InChIKey: ZJCCRDAZUWHFQH-UHFFFAOYSA-N
• SMILES: CCC(CO)(CO)CO

1,1,1-Tris(hydroxymethyl)propane(Cat No.: R022382), also known as trimethylolpropane (TMP), is a triol with the chemical formula C₆H₁₄O₃. It features a central propane backbone substituted with three hydroxymethyl groups, making it a versatile building block in polymer chemistry. TMP is widely used in the production of alkyd resins, polyesters, polyurethane foams, and synthetic lubricants. Its trifunctionality allows for cross-linking and enhanced structural stability in polymers. TMP also improves the hardness, flexibility, and chemical resistance of coatings, adhesives, and plastic formulations.