Synonyms: 3-Heptanone,6-(dimethylamino)-4,4-diphenyl-, hydrochloride (8CI,9CI); (?à)-Methadone hydrochloride;4,4-Diphenyl-6-dimethylamino-3-heptanone hydrochloride;4,4-Diphenyl-6-dimethylamino-3-heptanone hydrochloride (?à)-;6-Dimethylamino-4,4-diphenyl-3-heptanone hydrochloride; AN 148; Adanon; Adanonhydrochloride; Adolan; Algidon; Algolysin; Amidon; Butalgin; DL-Methadonehydrochloride; Depridol; Diaminon hydrochloride; Dolofin hydrochloride;Dolophin hydrochloride; Dolophine; Fenadon; Fenadone; Heptadon; Hoechst 10820;Ketalgin; Ketalgin hydrochloride; Mecodin; Mephenon; Methadone hydrochloride; Methadose;Miadone; Moheptan; NSC 19600; Phenadone hydrochloride; Polamidon; Racemicmethadone hydrochloride; dl-6-Dimethylamino-4,4-diphenyl-3-heptanonehydrochloride; dl-Methadone hydrochloride