A steroid hormone that regulates the processes of MOLTING or ecdysis in insects.
Molting Hormone
D013150
Spirostans
Cholestane derivatives containing a fused lactone ring at the 16,17-position and a spiroglycosidic linkage at C-22. Members include sarsaponin, DIOSGENIN and yamogenin.
The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)