If your goal is to avoid all suspicion of harmful chemicals, than using traditional deodorant or antiperspirant will make that very difficult. The easiest way to keep your body safe and healthy is to avoid entirely all chemical laden deodorants and antiperspirants, and begin using natural deodorants.
Medical Definition of nitro. : containing or being the monovalent group NO2 united through nitrogen.
Pure nitroglycerin is a contact explosive (physical shock may result in an explosion), which degrades over time, producing even more unstable chemical forms. As a result nitroglycerin is highly dangerous to transport or handle.