3,5-Lutidine
3,5-Lutidine is a heterocyclic organic compound with the formula 2C5H3N. It is one of several dimethyl-substituted derivatives of pyridine, all of which are referred to as lutidines. It is a colorless liquid with mildly basic properties and a pungent odor. The compound is a precursor to the drug omeprazole.
3,5-Lutidine is produced industrially by condensation of acrolein, ammonia, and formaldehyde: