Azine C5H5N Pyridine 4 Reactions utilise: Pyridine 2 Reactions form: Pyridine C 5 H 5 N 1      Real, long lived, electronically neutral reagent chemical. Gram formula weight (molecular mass) = 79.099 Melting point = -42 °C Boiling point = 115 °C Density = .978 g/cm3 Purity = 99 % Solubility in organics = infinitely miscible Molar absorbtivity = 1259 at 256 nm !! Smelly !! Wikipedia Page: Pyridine is defined with respect to the entities below: The entities below are defined with respect to: Pyridine Borderline Lewis base (generic) 6 Heterocycle (generic) Lobe-HOMO Lewis base (generic) Molecular material (generic) pi-HOMO Lewis base (generic) Pyridine (generic) chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis