(2E)-1-[(6-Chloro-3-pyridinyl)methyl]-N-nitro-2-imidazolidinimine-13C2,15N; 1-[(6-Chloro-3-pyridinyl)methyl]-4,5-dihydro-N-nitro-1H-imidazol-2-amine-13C2,15N; 1-[(6-Chloro-3-pyridinyl)methyl]-N-nitro-2-imidazolidinimine-13C2,15N; Couraze-13C2,15N; Premis-13C2,15N; Grubex-13C2,15N;,Imidacloprid