Procaine (Vitamin H3) is a local anesthetic of the ester type that has a slow onset and a short duration of action. It is mainly used for infiltration anesthesia, peripheral nerve block, and spinal block.

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.

Daminozide (Succinic Acid) is a plant growth regulator, selectively inhibits the KDM2/7 JmjC subfamily.

FY-21 is a selective LSD1 inhibitor (IC50= 340 nM) that inhibits proliferation and colony formation of leukemia cells, decreases mRNA levels of the transcription factors HOXA9 and MEIS1, and can be used in the study of leukemia.