Eastman NPG (neopentyl glycol) is a high-quality functional glycol widely used as a chemical intermediate in a variety of manufacturing processes, including coating resins, polyesters, plasticizers, and synthetic lubricants. Eastman NPGs feature slightly hindered primary hydroxyl groups that provide rapid reactivity during esterification reactions with acids. It also offers good resistance in end products against humidity, corrosion, chemicals, and stains. In addition to the hydroxyl groups, the pendant methyl groups provide improved solubility and thermal stability. This combination of properties imparts high Tg with low resin color. Neopentyl glycol is most commonly used as a sole glycol component or can also be used with a modifying glycol to manufacture polyester resins for applications like fiberglass-reinforced plastics and industrial coatings. Eastman NPG is also a choice chemical intermediate for manufacturing coil coatings often found in appliances and outdoor applications due to its durability, weathering, thermal stability, and stain resistance. In addition to coil coatings, neopentyl glycol can be utilized in gel and powder coatings. It provides similar durability and weathering benefits in addition to phenomenal water resistance. Eastman neopentyl glycol is also utilized in polyurethane coatings, notably found across industries such as the automotive, aerospace, and transportation. Eastman NPG meets federal food additive regulations in the United States and is available in both solid and liquid forms. IUPAC: 2,2-Dimethylpropane-1,3-diol CAS number: 126-30-7 Molecular formula: C5H12O2 For grade specification information, like boiling point, flash point, and melting point, continue below to the grade-specific product pages.