Liquid. In 1 ml DMSO. AVOID FREEZE/THAW CYCLES. A cocktail of six protease inhibitors with broad specificity for the inhibition of aspartic, cysteine, and serine proteases as well as aminopeptidases. This cocktail is recommended for use with mammalian cell and tissue extracts. Each vial contains 100 mM AEBSF, HCl (Cat. No. 101500), 80 µM Aprotinin (Cat. No. 616371), 5 mM Bestatin (Cat. No. 200484), 1.5 mM E-64 (Cat. No. 324890), 2 mM Leupeptin Hemisulfate (Cat. No. 108975) and 1 mM Pepstatin A (Cat. No. 516482). Available as 1 ml vial or a set of 5 x 1 ml.