Description General description 2,3-Dimethyl-2-butene undergoes ozonolysis in dark to yield hydroxyl radical. Reaction of ozone with 2,3-dimethyl 2-butene (DMB) has been investigated using a flow-tube interfaced to UV photoelectron spectrometer. DMB forms adduct with thianthrene cation radical tetrafluoroborate at 0°C and -15°C. Application 2,3-Dimethyl-2-butene was employed as substrate in photoinduced molecular transformations involving 2-hydroxy-1,4-naphthoquinones. Packaging 25, 100 mL in ampule