M P Diol Glycol

Cas Number


Other Names


The formula



2-Methyl-1,3-propanediol (MPDiol glycol) is a versatile diprimary intermediate for polyester resins manufacture. It is a pumpable liquid at 100% solids. Its nonlinear structure adds value to the end user providing weatherable, extremely flexible liquid resins. This diol can be used in the manufacture of polyester resins and polyester polyol intermediates for use in, for example, OEM, refinish, and coil coatings.

Physical and Chemical Properties
Physical state and Appearance : Viscous liquid.
Odor : Little or no odor.
Color: Clear, colorless to white
Flash Point: ~ 127 °C (260.6 °F) (PMCC)
Boiling Point: ~ 212 °C (413.6 °F) @ 760 mm Hg
Melting point: < -54 °C (-65.2 °F)
Vapor Pressure : < 0.1 mm Hg @ 20 °C (68 °F)
Vapor Density : ~ 3.2 (Air = 1.0 at 15 – 20 °C/59 – 68 °F)
Solubility: Complete (In All Proportions).
Assay, weight %: 98
2 METHYL-1,3-PENTANDIOL: weight %
Water, weight %: 0.1
Carbonyl as CHO, ppm: 500

MPDiol glycol is a pumpable liquid at 100% solids, providing the resin manufacturer with an easy to handle intermediate for the production of polyester resins.

MPDiol glycol-based resins tend to be less viscous, which aids in reducing the amount of solvent required in end use applications the resulting products are quite versatile and can be used as intermediates in solventborne and waterborne polyurethane resin synthesis, high solids polyesters, and powder polyester resins.