(R,R)-Bexobrutideg is the (R,R)-enantiomer of Bexobrutideg. Bexobrutideg is an orally active PROTAC that induces specific BTK protein degradation via a cereblon E3 ligase (CRBN) complex without degrading other cereblon neo substrates. Bexobrutideg mediates potent anti-inflammatory activity through BTK degradation, thereby inhibiting B cell activation. Bexobrutideg exhibits potent tumor growth inhibition in TMD8 xenograft models containing wild-type BTK or BTKi resistance mutations. Bexobrutideg is effective in a mouse model of collagen-induced arthritis (CIA). Bexobrutideg can cross the blood-brain barrier. NX-5948 consists of a target protein ligand, a linker, and a VHL E3 ubiquitin ligase.

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.