Enzalutamide (MDV3100) Enzalutamide (MDV3100) Synonyms: [14C]-Enzalutamide; N-methyl-4-[3-(4-cyano-3-trifluoromethylphenyl)-5,5-dimethyl-4-oxo-2-thioxoimidazolidin-1-yl]-2-fluorobenzamide; 4-(3-(4-cyano-3-(trifluoromethyl)phenyl)-5,5-dimethyl-4-oxo-2-thioxoimidazolidin-1-yl)-2-fluoro-N-methylbenzamide; CAS NO.: 915087-33-1 Formula: C21H16F4N4O2S Weight: 464.436