3.4.21.B42 amidinophenylmethansulfonylfluorid complete inhibition at 2.5 microM 132486 3.4.21.B42 Aprotinin 30% inhibition at 2.5 mM 405 3.4.21.B42 benzamidine 40% inhibition at 2.5 mM 579 3.4.21.B42 Phenylmethylsulfonylfluoride 20 mM 1148