Chemical/Physical Properties CAS Number: 108-90-7 Color/ Form/Odor: Colorless liquid with a faint, almond-like, aromatic odor M.P.: -45.6 C B.P.: 132 C Vapor Pressure: 11.8 mm Hg at 25 C Octanol/Water Partition (Kow): Log Kow = 2.18 to 2.84 Density/Spec.