Acetic acid, [7-(acetyloxy)-8-formyldodecahydro-10-hydroxy-1,4b,8-trimethyl-2(1H)-phenanthrenylidene]-, 2-(methylamino)ethyl ester, [1R-(1.alpha.,2E,4a.alpha.,4b.beta.,7.beta.,8.beta.,8a.alpha.,10.beta.,10a.beta.)]- NSC179181