2, 2 - dihydroxy methyl propionic acid synthesis for the first time in 1901, with a new structure of amyl, quaternary carbon atom on connection between the two primary hydroxyl, carboxyl and give it new amyl structure stability, good heat resistance and light can be used as crosslinking agent, emulsifying agent, dispersing agent and curing agent, widely used in electrodeposition coating, epoxy coating, printing ink, chemical intermediates and photography, and other fields.