Researches in the phenanthridine series; quaternary salts with urethane and urea substituents.
D010617:Phenanthridines; D012492:Salts; D014508:Urea / Q000737:chemistry*; D014520:Urethane
D010617:Phenanthridines; D012492:Salts; D014520:Urethane; D014508:Urea
ETHYL CARBAMATE; PHENANTHRIDINES; UREA/chemistry