13-tert-Butyloxycarbonylhydrazone of carminomycin hydrochloride 81914-45-6 Carbazic acid, 3-(1-(4-((3-amino-2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxy)-6,11-dioxo-1,2,3,4,6,11-hexahydro-2,5,7,12-tetrahydroxynaphthacen-2-yl)ethylidene)-, tert-butyl ester, monohydrochloride