Sulfur trioxide pyridine complex26412-87-3100 % similar Pyridine110-86-160 % similar Pyridinium hydrobromide18820-82-150 % similar Hydrofluoric acid pyridine complex32001-55-150 % similar Poly(pyridine fluoride)62778-11-450 % similar Pyridinium chloride628-13-750 % similar Sulfur trioxide7446-11-940 % similar Cornforth reagent20039-37-638 % similar Pyridinium chlorochromate26299-14-938 % similar Pyridinium trifluoroacetate464-05-136 % similar Pyrimidine289-95-232 % similar Pyrazine290-37-931 % similar 4-Phenylpyridine939-23-130 % similar