One chemical constituent of partially purified hexane
extract from Momordica cochinchinensis leaf was
momordica triterpenoid ester. Our experiment and finding
was also described somewhere else.9 This momordica
triterpenoid ester was obtained as a pale yellow
amorphous solid. UV spectrum of momordica triterpenoid
ester consisted of three sharp peaks at 231.62, 287.79,
347.22 nm and one broad peak at 438.28-466.09 nm.
Absorption bands at 2400, 1700 and 1400 cm-1 in the IR
spectrum of momordica triterpenoid ester indicated the
presence of acetylenic group, vinyl ester and
trisubstituted double bond respectively.9