There is no known synthetic compound that consists of 200 individual nitrogen atoms or molecules bonded together. Such a compound would be highly unusual and challenging to synthesize due to the chemical properties and reactivity of nitrogen. Nitrogen typically forms stable bonds with other elements, such as hydrogen (in ammonia) or oxygen (in nitric oxide), rather than bonding with multiple nitrogen atoms.
Large chains or rings containing nitrogen atoms, such as proteins or nucleic acids, can exist in nature, but they are composed of various elements, including carbon, oxygen, hydrogen, and nitrogen, among others. Synthetic compounds with numerous nitrogen atoms usually consist of smaller repeating units, such as in polymers or complex organic compounds, rather than a single giant molecule made up solely of nitrogen atoms.