NBCoV2 is a highly potent small molecule viral fusion inhibitor with potential pan-Coronavirus activity (SARS-CoV IC50=13.8 nM, SARS-CoV-2 IC50=22.8 nM, MERS-CoV IC50=77 nM, cell-based single-cycle assays). NBCoV2 also has potent antiviral activity against all mutant pseudoviruses carrying single-, double-, or triple-mutations featured in the B.1.1.7 UK, B.1.351 RSA, and B.1.617.2 Delta variants (IC50=30-80 nM). NBCoV2 completely preventing the induction of any virus-induced CPE (IC100=1.25 uM, SARS-CoV-2 (US_WA-1/2020)). NBCoV2 bind to the S2 subdomain of the SARS-CoV-2 trimer, thus, inhibits the fusion of CoVs with the cell membran, and is specific for the SARS-CoV-2 S protein.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.