Synonyms: l-Isomethadone hydrochloride;Levoisomethadone hydrochloride;(-)-Isomethadone hydrochloride;Isomethadone l-form hydrochloride;NIH 2961;3-Hexanone, 6-(dimethylamino)-4,4-diphenyl-5-methyl-, hydrochloride, (S)-;3-Hexanone, 6-(dimethylamino)-5-methyl-4,4-diphenyl-, hydrochloride, (-)-;6-(Dimethylamino)-4,4-diphenyl-5-methyl-3-hexanone hydrochloride (S)-;Isomethadone l-form HCl;Isomethadone hydrochloride;AC1L38SW;NSC2106;1-ISOMETHADONE HYDROCHLORIDE;NSC-2106;3-Hexanone,4-diphenyl-, hydrochloride;LS-75451;6-(dimethylamino)-5-methyl-4,4-diphenylhexan-3-one hydrochloride;6-(dimethylamino)-5-methyl-4,4-diphenylhexan-3-one hydrochloride (1:1);5341-49-1;7487-81-2