Identification of N2-methylguanine (2-methylamino-6-hydroxypurine) as a normal constituent of human urine.
D001826:Body Fluids; D006147:Guanine / Q000031:analogs & derivatives; D006801:Humans; D014556:Urine
D006147:Guanine; C008450:7-methylguanine
GUANINE/derivatives; URINE