1,2-Dihydro-1-hydroxy-6-methyl-2-(propanesulfonyl)-thieno(3,2D)(1,2,3)-diazaborine 67398-03-2 Diazaborine compound 2b18 Pkf 84.474 SA 84474 Thieno(3,2-d)(1,2,3)diazaborine, 1,2-dihydro-1-hydroxy-6-methyl-2-(propylsulfonyl)-