Provided is an inactive compound that is activated by reaction with ozone into an active compound having a carbonyl oxygen. Also provided is a method of activating the above inactive compounds. Further provided is a method of treating a disease or condition in a subject using the above compound at a site that is not exposed to atmospheric ozone. Additionally provided is a method of determining internal ozonolysis in a subject using the above compound. Also provided is a molecule less than 1000 mw, having a double bond that is reactive with ozone, and forms a nontoxic compound after reacting with ozone. Further provided is a method of degrading ozone.
