3.2.1.140 25 - assay at 695742 3.2.1.140 30 - assay at 732092, 753153 3.2.1.140 37 - assay at 753245 3.2.1.140 50 - - 26154 3.2.1.140 60 - - 732113 3.2.1.140 60 - p-nitrophenyl-beta-lacto-N-bioside 26153