Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  N'ụzọ: Ọdịdị absorption optical nke pyridine na hexane nwere bandị atọ na wavelengths nke 195 nm (π → π * mgbanwe, molar absorptivity ε = 7500 L·mol−1·cm−1), 251 nm (π → π * mgbanwe, ε = 2000 L·mol−1·cm−1) na 270 nm (n → π * mgbanwe, ε = 450 L·mol−1·cm−1). 1H nuclear magnetic resonance (NMR) spectrum nke pyridine nwere akara atọ nwere oke ike nke 2: 1: 2 nke kwekọrọ na protons atọ dị iche iche dị na molekul. Ihe mgbaàmà ndị a sitere na α-protons (ọnọdụ 2 na 6, mgbanwe kemịkalụ 8.5 ppm), γ-proton (ọnọdụ 4, 7.5 ppm) na β-protons (ọnọdụ 3 na 5, 7.1 ppm). Ihe yiri carbon nke pyridine, benzene, nwere nanị otu mgbaàmà proton na 7.27 ppm. Mgbanwe kemịkalụ dị ukwuu nke α- na γ-protons ma e jiri ya tụnyere benzene na-esite na njupụta electron dị ala na ọnọdụ α- na γ, nke enwere ike ị nweta site na usoro resonance. Ọnọdụ ahụ yiri nnọọ nke ahụ maka 13C NMR spectra nke pyridine na benzene: pyridine na-egosi otu ụzọ n'ụzọ atọ na δ(α-C) = 150 ppm, δ(β-C) = 124 ppm na δ(γ-C) = 136 ppm, ebe benzene nwere otu ahịrị na 129 ppm. A na-edepụta mgbanwe niile maka ihe ndị na-enweghị ihe mgbaze. A na-achọpụta pyridine site na chromatography gas na usoro spectrometry.  Ajụjụ: Olee otú ọtụtụ ìgwè dị na a pyridine ụdịdị dị iche iche n'ime a hexane?
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