Nitro-PAH
A somewhat exotic variant:
1,3-Dinitropyrene
While Polychlorinated Naphthalenes (PCN) represent a halogenated variant of a single PAH component (Naphthalene), Nitro-PAHs are substituted derivatives of different components.
Nitro-PAHs make up only a fraction of the total PAH amount but received special attention in the 1980s (Nitro-PAHs from combustion engines) due to their biological activity.
The analytics are also desired in carbon blacks, currently with 8 selected Nitro-PAHs.
