Isolation and characterization of N-methyl-N'-oxonicotinium ion, a new urinary metabolite of R-(+)-nicotine in the guinea pig.
Pool WF, Houdi AA, Damani LA, Layton WJ, Crooks PA. Isolation and characterization of N-methyl-N'-oxonicotinium ion, a new urinary metabolite of R-(+)-nicotine in the guinea pig. Drug Metab Dispos. 1986 Sep-Oct; 14(5):574-9.