Balicatib(AAE-581) is a potent and selective inhibitor of cathepsin K; 10-100-fold more potent in cell-based enzyme occupancy assays than against cathepsin B, L, and S.

CA-074 Me is a selective and cell-permeable inhibitor of cathepsin B.

Cathepsin Inhibitor 1 is an inhibitor of Cathepsin (L, L2, S, K, B) with pIC50 of 7.9, 6.7, 6.0, 5.5 and 5.2, respectively.

E-64D is an inhibitor of cathepsins B and L; also thought to inhibit calpain,showed a potent activity for COVID-19(SARS-COV-2)with EC50: MERS-COV(1.275),SARS-COV(0.760)

L 006235 is a reversible and potent cathepsin K inhibitor that displays more than a 4000 fold selectivity over cathepsins B, L and S.

Leupeptin hemisulfate is a reversible, competitive serine/cysteine protease inhibitor, which has been shown to inhibit cathepsins B, H, L, and S, calpain, and trypsin. Leupeptin hemisulfate is an orally active, antioxidant and anti-inflammatory agent.

Odanacatib (MK 0822) is a potent, selective, and neutral inhibitor of human and rabbit cathepsin K with IC50 of 0.2 nM and 1 nM , respectively.

JPM-OEt is a broad spectrum cysteine cathepsin inhibitor. JPM-OEt binds covalently in the active site, and irreversibly inhibits the cysteine cathepsin family. Antitumor activity.

SID 26681509 is a potent, reversible, competitive, and selective inhibitor of human cathepsin L with an IC50 of 56 nM. SID 26681509 inhibits in vitro propagation of malaria parasite Plasmodium falciparum and inhibits Leishmania major with IC50s of 15.4 μM and 12.5 μM, respectively. SID 26681509 shows no inhibitory activity against cathepsin G.

K777 is a potent, orally active and irreversible cysteine protease inhibitor. K777 is also a potent CYP3A4 inhibitor with an IC50 of 60 nM and a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 irreversibly inhibits Cruzain, the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 is a broad-spectrum antiviral by targeting cathepsin-mediated cell entry. K777 inhibits SARS-CoV and EBOV pseudovirus entry with IC50 values of 0.68 nM and 0.87 nM, respectively.

Cysteine protease inhibitor-2 is a cysteine protease inhibitor extracted from patent US20070032499A1, compound 12. Cysteine protease inhibitor-2 inhibits the cells growth of DCT116 and PC3 cells with GI50 values of 6.5 μM and 4.4 μM, respectively.

Z-LVG-CHN2 is a cell-permeable and irreversible inhibitor of cysteine proteinase. Z-LVG-CHN2 is a tripeptide derivative and mimics part of the human cysteine proteinase-binding center. Z-LVG-CHN2 displays an inhibition on HSV whereas no significant effect on poliovirus replication. Z-LVG-CHN2 effectively blocks SARS-COV-2 replication (EC50=190 nM) via inhibition of SARS-COV-2 3CL pro protease.

VBY-825 is a novel, reversible cathepsin inhibitor with high potency against cathepsins B, L, S and V.

Cathepsin D and E FRET Substrate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D.

SID 26681509 quarterhydrate is a potent, reversible, competitive, and selective of human cathepsin L with an IC50 of 56 nM. SID 26681509 quarterhydrate inhibits in vitro propagation of malaria parasite Plasmodium falciparum and inhibits Leishmania major with IC50s of 15.4 μM and 12.5 μM, respectively. SID 26681509 quarterhydrate shows noy activity against cathepsin G.

Z-FY-CHO (Z-Phe-Tyr-CHO) is a potent and specific cathepsin L (CTSL) inhibitor.

Cathepsin D and E FRET Substrate acetate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D.

Cathepsin L-IN-2 (Z-Phe-Phe-FMK) is a potent and irreversible cathepsin L and cathepsin B inhibitor.

ABP 25 is an activity-based probe for cathepsin K imaging with excellent potency and selectivity.

GSK-2793660 is an orally active and irreversible inhibitor of Cathepsin C (CTSC). GSK-2793660 can be used for the research of bronchiectasis.

Cathepsin K inhibitor 2 is a potent inhibitor of cathepsin K. Cathepsin K, Cat K is a cysteine protease expressed under the control of CTSK gene and closely related to osteoporosis, whose main function is to hydrolyze collagen. Cathepsin K inhibitor 2 has the potential for the research of osteoarthfitis (extracted from patent WO2021147882A1, compound 78).