N-((5-O-(4',6'-dideoxy-4'-(methylamino)-3'-O-(3''-O-sulfo-beta-D-glucopyranosyl)-beta-D-galactopyranosyl)-5,6,8,13-tetrahydro-1,5,6,9,14-pentahydroxy-1-methoxy-3-methyl-8,13-dioxobenzo(a)naphthacene-2-yl)carbonyl)-D-serine