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Serine Protease

Serine Protease Products

All (18)
Serine Protease Inhibitors (18)
New Serine Protease Products

Catalog No.	Product Name	Information	Product Use Citations
S7380	Leupeptin Hemisulfate	Leupeptin Hemisulfate is a reversible inhibitor of serine and cysteine proteases. It inhibits cathepsin B (Ki = 6 nM), calpain (Ki = 10 nM), trypsin (Ki = 35 nM), plasmin (Ki = 3.4 μM), and kallikrein (Ki = 19 μM), and has no effect against chymotrypsin, elastase, renin, or pepsin.	J Adv Res, 2025, S2090-1232(25)00056-6 J Transl Med, 2025, 23(1):62 iScience, 2025, 28(2):111804
S3025	PMSF	PMSF (Phenylmethylsulfonyl Fluoride, Benzylsulfonyl fluoride) is an irreversible serine/cysteine protease inhibitor.	Cell Death Discov, 2024, 10(1):171 Cell Biosci, 2023, 13(1):9 Cell Biosci, 2023, 13(1):9
S1811	Amiloride HCl	Amiloride HCl is a selective T-type calcium channel blocker, an epithelial sodium channel blocker and a selective inhibitor of urokinase plasminogen activator (uPA)(Ki=7 μM).	J Extracell Vesicles, 2024, 13(4):e12426 J Extracell Vesicles, 2024, 13(4):e12426 Virus Res, 2024, 339:199258
S1386	Nafamostat mesilate (FUT-175)	Nafamostat mesilate is a synthetic serine protease inhibitor, used as an anticoagulant during hemodialysis. Nafamostat mesylate blocks activation of SARS-CoV-2 and is investigated as a new treatment option for COVID-19. Nafamostat Mesilate attenuates inflammation and apoptosis.	J Immunother Cancer, 2024, 12(11)e009805 Cell Death Dis, 2024, 15(2):109 CNS Neurosci Ther, 2024, 30(6):e14822
S8136	Sivelestat	Sivelestat is a potent and selective inhibitor of neutrophil elastase with IC50 of 44nM. It almost shows no activity at a range of other proteases.	J Immunother Cancer, 2025, 13(2)e010813 Int Immunopharmacol, 2025, 151:114340 Nat Commun, 2024, 15(1):6519
S7378	AEBSF HCl	AEBSF HCl is a broad spectrum, irreversible serine protease inhibitor.	Acta Pharm Sin B, 2024, 14(6):2554-2566 Int J Med Sci, 2024, 21(7):1204-1212 Int J Biol Sci, 2023, 19(13):4327-4339
S4666	Sivelestat sodium tetrahydrate	Sivelestat sodium tetrahydrate (ONO5046-Na, EI546, LY544349) is a competitive inhibitor of human neutrophil elastase, also inhibits leukocyte elastase obtained from rabbit, rat, hamster and mouse.	J Thorac Dis, 2024, 16(10):6616-6633 J Immunol, 2021, 206(4):797-806 Aging (Albany NY), 2020, 12(17):16820-16836
S2101	Gabexate Mesylate	Gabexate Mesylate(FOY) is a serine protease inhibitor with IC50 of 0.19 μM which is used therapeutically in the treatment of pancreatitis and disseminated intravascular coagulation.	Curr Res Chem Biol, 2022, 2:100023 Front Oncol, 2019, 0.87569444444 J Biol Chem, 2018, 293(34):13112-13124
S7218	Alvelestat (AZD9668)	Alvelestat (AZD9668, Avelestat) is an oral, highly selective inhibitor of neutrophil elastase (NE) with IC50 and K_i of 12 nM and 9.4 nM, at least 600-fold more selective over other serine proteases. Phase 2.	Cell Death Discov, 2025, 11(1):29 Proc Natl Acad Sci U S A, 2021, 118(34)e2102435118 Sci Rep, 2019, 9(1):715
S8457	UK-371804 HCl	UK-371804 is a potent and selective urokinase-type plasmogen activator (uPA) inhibitor with excellent enzyme potency (Ki=10 nM) and selectivity profile (4000-fold versus tPA and 2700-fold versus plasmin).	PNAS Nexus, 2022, 1(3):pgac104 Front Genet, 2021, 12:651882
S7377	Aprotinin	Aprotinin is a small protein serine protease inhibitor (Kd=0.06 pM for bovine β-trypsin), used to reduce perioperative blood loss and transfusion.	J Immunother Cancer, 2024, 12(11)e009805 Elife, 2021, 10e65962 Autophagy, 2017, 13(3):538-553
E7249^New	Ulinastatin	Ulinastatin (Uristatin) is the main inhibitor of a hydrolase protein and serine protease suppresses trypsin, chymotrypsin, and other pancreatic proteases. It can inhibit the production and release of inflammatory factors through mediating inflammatory pathways, while modulating apoptosis, enzyme activity, coagulation, and immune responses. It is effective in preventing and managing conditions like pancreatitis, cerebral edema, acute respiratory distress, circulatory failure, sepsis, and systemic inflammatory response syndrome.
S0042	Fulacimstat	Fulacimstat (BAY1142524) is an orally available inhibitor of chymase with IC50 of 4 nM and 3 nM for human and hamster chymase enzyme, respectively.
S3511	FOY251	FOY251, an active metabolite of camostat mesilate, is an inhibitor of synthetic serine protease. FOY251 inhibits SARS-CoV-2 infection.
E1342	Sebetralstat	Sebetralstat(KVD900) is a plasma kallikrien inhibitor.
E6013^New	Sivelestat sodium	Sivelestat sodium (ONO-5046, Sodium sivelestat, LY544349 sodium) is a potent, specific, and intravenously active inhibitor of neutrophil elastase with an IC50 value of 44 nm. It is a useful agent for studying the roles of neutrophil elastase in animal disease models such as emphysema, adult respiratory distress syndrome, septic shock and disseminated intravascular coagulation in COVID-19.
E1014	Upamostat (WX-671)	Upamostat (WX-671), a novel serine protease urokinase (uPA) inhibitor by inhibiting the urokinase-type plasminogen activator (uPA) system.
S0479	ZK824859	ZK824859 is a potent, selective and orally bioavailable inhibitor of urokinase plasminogen activator (uPA) with IC50 of 79 nM, 1580 nM and 1330 nM for human uPA, tPA, and plasmin, respectively.
S7380	Leupeptin Hemisulfate	Leupeptin Hemisulfate is a reversible inhibitor of serine and cysteine proteases. It inhibits cathepsin B (Ki = 6 nM), calpain (Ki = 10 nM), trypsin (Ki = 35 nM), plasmin (Ki = 3.4 μM), and kallikrein (Ki = 19 μM), and has no effect against chymotrypsin, elastase, renin, or pepsin.	J Adv Res, 2025, S2090-1232(25)00056-6 J Transl Med, 2025, 23(1):62 iScience, 2025, 28(2):111804
S3025	PMSF	PMSF (Phenylmethylsulfonyl Fluoride, Benzylsulfonyl fluoride) is an irreversible serine/cysteine protease inhibitor.	Cell Death Discov, 2024, 10(1):171 Cell Biosci, 2023, 13(1):9 Cell Biosci, 2023, 13(1):9
S1811	Amiloride HCl	Amiloride HCl is a selective T-type calcium channel blocker, an epithelial sodium channel blocker and a selective inhibitor of urokinase plasminogen activator (uPA)(Ki=7 μM).	J Extracell Vesicles, 2024, 13(4):e12426 J Extracell Vesicles, 2024, 13(4):e12426 Virus Res, 2024, 339:199258
S1386	Nafamostat mesilate (FUT-175)	Nafamostat mesilate is a synthetic serine protease inhibitor, used as an anticoagulant during hemodialysis. Nafamostat mesylate blocks activation of SARS-CoV-2 and is investigated as a new treatment option for COVID-19. Nafamostat Mesilate attenuates inflammation and apoptosis.	J Immunother Cancer, 2024, 12(11)e009805 Cell Death Dis, 2024, 15(2):109 CNS Neurosci Ther, 2024, 30(6):e14822
S8136	Sivelestat	Sivelestat is a potent and selective inhibitor of neutrophil elastase with IC50 of 44nM. It almost shows no activity at a range of other proteases.	J Immunother Cancer, 2025, 13(2)e010813 Int Immunopharmacol, 2025, 151:114340 Nat Commun, 2024, 15(1):6519
S7378	AEBSF HCl	AEBSF HCl is a broad spectrum, irreversible serine protease inhibitor.	Acta Pharm Sin B, 2024, 14(6):2554-2566 Int J Med Sci, 2024, 21(7):1204-1212 Int J Biol Sci, 2023, 19(13):4327-4339
S4666	Sivelestat sodium tetrahydrate	Sivelestat sodium tetrahydrate (ONO5046-Na, EI546, LY544349) is a competitive inhibitor of human neutrophil elastase, also inhibits leukocyte elastase obtained from rabbit, rat, hamster and mouse.	J Thorac Dis, 2024, 16(10):6616-6633 J Immunol, 2021, 206(4):797-806 Aging (Albany NY), 2020, 12(17):16820-16836
S2101	Gabexate Mesylate	Gabexate Mesylate(FOY) is a serine protease inhibitor with IC50 of 0.19 μM which is used therapeutically in the treatment of pancreatitis and disseminated intravascular coagulation.	Curr Res Chem Biol, 2022, 2:100023 Front Oncol, 2019, 0.87569444444 J Biol Chem, 2018, 293(34):13112-13124
S7218	Alvelestat (AZD9668)	Alvelestat (AZD9668, Avelestat) is an oral, highly selective inhibitor of neutrophil elastase (NE) with IC50 and K_i of 12 nM and 9.4 nM, at least 600-fold more selective over other serine proteases. Phase 2.	Cell Death Discov, 2025, 11(1):29 Proc Natl Acad Sci U S A, 2021, 118(34)e2102435118 Sci Rep, 2019, 9(1):715
S8457	UK-371804 HCl	UK-371804 is a potent and selective urokinase-type plasmogen activator (uPA) inhibitor with excellent enzyme potency (Ki=10 nM) and selectivity profile (4000-fold versus tPA and 2700-fold versus plasmin).	PNAS Nexus, 2022, 1(3):pgac104 Front Genet, 2021, 12:651882
S7377	Aprotinin	Aprotinin is a small protein serine protease inhibitor (Kd=0.06 pM for bovine β-trypsin), used to reduce perioperative blood loss and transfusion.	J Immunother Cancer, 2024, 12(11)e009805 Elife, 2021, 10e65962 Autophagy, 2017, 13(3):538-553
E7249^New	Ulinastatin	Ulinastatin (Uristatin) is the main inhibitor of a hydrolase protein and serine protease suppresses trypsin, chymotrypsin, and other pancreatic proteases. It can inhibit the production and release of inflammatory factors through mediating inflammatory pathways, while modulating apoptosis, enzyme activity, coagulation, and immune responses. It is effective in preventing and managing conditions like pancreatitis, cerebral edema, acute respiratory distress, circulatory failure, sepsis, and systemic inflammatory response syndrome.
S0042	Fulacimstat	Fulacimstat (BAY1142524) is an orally available inhibitor of chymase with IC50 of 4 nM and 3 nM for human and hamster chymase enzyme, respectively.
S3511	FOY251	FOY251, an active metabolite of camostat mesilate, is an inhibitor of synthetic serine protease. FOY251 inhibits SARS-CoV-2 infection.
E1342	Sebetralstat	Sebetralstat(KVD900) is a plasma kallikrien inhibitor.
E6013^New	Sivelestat sodium	Sivelestat sodium (ONO-5046, Sodium sivelestat, LY544349 sodium) is a potent, specific, and intravenously active inhibitor of neutrophil elastase with an IC50 value of 44 nm. It is a useful agent for studying the roles of neutrophil elastase in animal disease models such as emphysema, adult respiratory distress syndrome, septic shock and disseminated intravascular coagulation in COVID-19.
E1014	Upamostat (WX-671)	Upamostat (WX-671), a novel serine protease urokinase (uPA) inhibitor by inhibiting the urokinase-type plasminogen activator (uPA) system.
S0479	ZK824859	ZK824859 is a potent, selective and orally bioavailable inhibitor of urokinase plasminogen activator (uPA) with IC50 of 79 nM, 1580 nM and 1330 nM for human uPA, tPA, and plasmin, respectively.
E7249^New	Ulinastatin	Ulinastatin (Uristatin) is the main inhibitor of a hydrolase protein and serine protease suppresses trypsin, chymotrypsin, and other pancreatic proteases. It can inhibit the production and release of inflammatory factors through mediating inflammatory pathways, while modulating apoptosis, enzyme activity, coagulation, and immune responses. It is effective in preventing and managing conditions like pancreatitis, cerebral edema, acute respiratory distress, circulatory failure, sepsis, and systemic inflammatory response syndrome.
E6013^New	Sivelestat sodium	Sivelestat sodium (ONO-5046, Sodium sivelestat, LY544349 sodium) is a potent, specific, and intravenously active inhibitor of neutrophil elastase with an IC50 value of 44 nm. It is a useful agent for studying the roles of neutrophil elastase in animal disease models such as emphysema, adult respiratory distress syndrome, septic shock and disseminated intravascular coagulation in COVID-19.

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