Synonyms: 2H-Imidazole-2-thione,5-(aminomethyl)-1-(5,7-difluoro-1,2,3,4-tetrahydro-2-naphthalenyl)-1,3-dihydro-,monohydrochloride, (S)-; 2H-Imidazole-2-thione,5-(aminomethyl)-1-[(2S)-5,7-difluoro-1,2,3,4-tetrahydro-2-naphthalenyl]-1,3-dihydro-,monohydrochloride (9CI); Nepicastat hydrochloride; RS 25560-197