HC-056456 (3,4-Bis(2-thienoyl)-1,2,5-oxadiazole-N-oxide) is a CatSper channel modulator.

HC-030031 (TOSLAB 829227) is a potent TRPA1 inhibitor, which antagonizes AITC- and formalin-evoked calcium influx with IC50s of 6.2±0.2 and 5.3±0.2 μM, respectively.

TAT-Gap19 TFA, a Cx mimetic peptide and specific connexin43 hemichannel (Cx43 HC) inhibitor, does not inhibit the corresponding Cx43 gap junction channels (GJCs). It crosses the blood-brain barrier and has been shown to alleviate liver fibrosis in mice [1] [2] [3].

Ketotifen (HC 20-511) is a second-generation, orally active noncompetitive histamine 1 (H1) receptor antagonist and mast cell stabilizer. It inhibits 6-phosphogluconate dehydrogenase (PGD) in vitro and displays antiviral activity against SARS-CoV-2 and the Influenza virus. Additionally, Ketotifen is utilized in researching autoimmune encephalomyelitis (EAE) and preventing asthma attacks.