14867-22-2 2-Naphthacenecarboxamide, 1,4,4a,5,5a,6,11,12a-octahydro-4-(dimethylamino)-1,11-dioxo-6-methyl-3,6,10,12,12a-pentahydroxy-N-(1-piperazinylmethyl)-, hydrochloride, hydrate (2:2:1) Chlorowodorku piperazynometylotetracykliny [Polish] Piperazinomethyltetracycline hydrochloride hemihydrate