Madrasin (DDD00107587) is a potent and cell penetrant splicing inhibitor that interferes with the early stages of spliceosome assembly.

H3B-968 is a potent inhibitor of Werner syndrome protein (WRN) with an IC50 of approximately 10 nM, effectively targeting its helicase, ATPase, and exonuclease activities. While WRN is known for its synthetic lethal activity in cancer studies, H3B-968 specifically inhibits WRN's helicase function through competitive ATP antagonism [1].

NSC 617145 (NSC617145) is an inhibitor of WRN helicase that inhibits the ATPase, but not exonuclease, activity of WRN helicase in a concentration-dependent manner.

Tempo (2,2,6,6-Tetramethylpiperidinooxy) has a wide range of applications including use as a free radical scavenger, a reagent in organic synthesis and as a structural probe in electron spin resonance spectroscopy.

Procaine hydrochloride (Novocaine HCl) is the hydrochloride salt form of procaine, a benzoic acid derivative with local anesthetic and antiarrhythmic properties. Procaine binds to and inhibits voltage-gated sodiumchannels, thereby inhibiting the ionic flux required for the initiation and conduction of impulses. In addition, this agent increases electrical excitation threshold, reduces rate of rise of action potential and slows nerve impulse propagation thereby causing loss of sensation.