E-64 Product Catalog # Size Price (USD) Quantity E-64290501-100MG100 mg$600.00 - E-64-100mg quantity + E-64290501-500MG500 mg$1,500.00 - E-64-500mg quantity + E-64290501-1G1 g$2,000.00 - E-64-1g quantity + Add to cart Description Synonym: E-64 Protease Inhibitor CAS #: 66701-25-5 Molecular Formula: C15H27N5O5 Molecular Weight: 357.4