(R)-CMPD-39 is the R enantiomer of CMPD-39. CMPD-39 is a selective non-covalent inhibitor of the ubiquitin-specific protease USP30 (IC50 =~20 nM), with high selectivity over other DUB family members (1-100 μM). CMPD-39 inhibits the deubiquitinating activity of USP30, enhances the ubiquitination of mitochondrial proteins TOMM20 and SYNJ2BP; thus, CMPD-39 promotes phosphoubuitin accumulation, thereby accelerating mitochondrial autophagy (mitophagy) and peroxisomal autophagy (pexophagy). CMPD-39 significantly restores impaired mitochondrial function in dopaminergic neurons derived from Parkinson's disease patients.

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.