<unk> (Eskata) is a topical solution that is FDA approved for the treatment of seborrheic keratoses that are raised.   Common adverse reactions include erythema (99%), stinging (97%), edema (91%), scaling (90%), crusting (81%), and pruritus (58%).
Hydrogen peroxide 
Peroxide
Superoxide
Hydrogen sulfide
Sulfur dioxide
Acrolein
Hydroperoxyl
Dimethyl sulfide