SMILES: CCC1CCC2C1(CCC3C2CCC4C3(CCCC4)C)C
Description: The molecule is a steroid that has a structure based on a 21-carbon (pregnane) skeleton. Note that individual examples may have ring substituents at other positions and/or contain double bonds, aromatic A-rings, expanded/contracted rings etc., so the formula and mass may vary from that given for the generic structure.