Above we found that the high symmetry of pyrazine leads to an 3 n,* state with an aromatic residual. In this context, 1,3,5-triazine (s-triazine) is a D3h symmetric N-containing heteroaromatics found in several agrochemicals. Interestingly, the s-triazine core in these agrochemicals is inert upon photoexcitation, whereas the substituents change positions. Highlevel computations also reveal that the lowest few excited states are of n,* character. Thus, one may postulate that the photostability of s-triazine based agrochemicals stem from aromatic residuals of their n,* states. Yet, as these states are highly multiconfigurational (both the highest n orbitals and the lowest * orbitals are doubly degenerate, Table ), a proper analysis requires an in-depth computational study.