لانوستان

Also known as [5S-[5alpha,8beta,9alpha,10beta,13beta,14alpha,17beta(S*)]]-17-(1,5-dimethylhexyl)hexadecahydro-4,4,10,13,14-pentamethyl-1H-cyclopenta[a]phenanthrene, (5alpha)-4,4,14-trimethylcholestane, 4,4,14-trimethylcholestane

Lanostane or 4,4,14α-trimethylcholestane is a tetracyclic chemical compound with formula . It is a polycyclic hydrocarbon, specifically a triterpene. It is an isomer of cucurbitane.