Momordicilin or 24-[1′-hydroxy,1′-methyl-2′-pentenyloxyl]-ursan-3-one is a chemical compound, a triterpenoid with formula C36H60O3, found in the fresh fruit of the bitter melon (Momordica charantia).

[1] The compound is soluble in ethyl acetate and chloroform but not in petrol.

It crystallizes as needles that melt at 170−171 °C.

It was isolated in 1997 by S. Begum and others.

[1] This biochemistry article is a stub.