138381-42-7 alpha-D-Xylofuranose, 1,2-O-(1-methylethylidene)-5-C-(1,2,6,6a,7,10,10a,11-octahydro-4-methyl-6,11-dioxoanthra(2,1-b)thien-9-yl)-, 3-(4-methylbenzenesulfonate), S,S-dioxide, (6aR-(6a-alpha,9(S*),10a-alpha))-