General descriptionEM12-SO₂F is a potent covalent inhibitor of the E3 ubiquitin ligase Cereblon (CRBN). It binds to a histidine residue (His353) in the IMiD‐binding pocket of CRBN, thereby blocking substrate recruitment and subsequent degradation. It is designed as a chemical probe for CRBN studies in targeted protein degradation (TPD) research.
Application- Chemical biology / TPD research: Ideal for probing CRBN function, substrate recruitment and degradation pathways.
- Covalent inhibitor development: Serves as scaffold or reference compound for covalent E3 ligase targeting.
- Drug discovery / probe studies: Especially when studying induced proximity, degrader design, or resistance mechanisms.
Features and BenefitsCovalent (sulfonyl fluoride) warhead: Enables irreversible binding to target residue, useful as a chemical probe for mechanistic studies. Research tool: Enables target validation of CRBN in TPD and induced-proximity programmes.