Posted on 17 June 2005 by kax_hpc6a-Methyl-7-phenylsulfonyl-6-phenylsulfonylmethyl-7,7a-dihydro-6aH-cyclopropa[d][1,2,3]triazolo[4,3-b]pyridazine acetone hemisolvate 6a-Methyl-7-phenylsulfonyl-6-phenylsulfonylmethyl-7,7a-dihydro-6aH-cyclopropa[d][1,2,3]triazolo[4,3-b]pyridazine acetone hemisolvate Acta Crystallographica Section E Anna Katrusiak, Andrzej Katrusiak