Detailed Product Description 2,2-Bis(hydroxymethyl)butyric acid, DMBA Specification: TESTSSPECIFICATIONS AppearanceOdorless White crystal Fe5 ppm max Na150 ppm max K, P, SO42-10 ppm max Silicon1 ppm max Hydroxyl value(mg KOH/g)728-782 Residue aldehyde0.01% Residue on ignition0.03% Moisture0.2% max Assay99.0% min Application:PU resinepoxy resinwater soluble alkyd resinpolyester resin