• White to off-white powder. /USP/
• UV: 939 (Absorption Spectra in the UV and visible Regions, Academic Press, New York) /Benzophenone, 2-hydroxy-4'-methoxy/
• MASS: 1532 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63) /Benzophenone, 2-hydroxy-4'-methoxy/
• UV: 1120 (Absorption Spectra in the UV and visible Regions, Academic Press, New York) /Benzophenone, 2-hydroxy-5-methoxy/
• Henry's Law constant = 1.5X10-8 atm-cu m/mol at 25 deg C (est)
• Hydroxyl radical reaction rate constant = 2.0X10-10 cu cm/molecule-sec at 25 deg C (est)