Phenanthrene-delta(sup 2(1H),alpha)-acetic acid, 3,4,4a-alpha,4b-beta,5,6,7,8,8a-alpha,9,10,10a-beta-dodecahydro-7-(1,3-dithiolan-2-yl)-, 2-(dimethylamino)ethyl ester, 1',1',3',3'-tetraoxide, hydrochloride SF7182800