minamestane minamestane minamestane (inn (former developmental code name fce-24,928) is a steroidal aromatase inhibitor which was under development by farmitalia-carlo erba as an antineoplastic agent in the mid-1990s but was never marketed. minamestaneclinical dataatc codenoneidentifiers iupac name 4-aminoandrosta-1,4,6-triene-3,17-dione cas number105051-87-4pubchem cid65886chemspider59295uniij02058abvecomptox dashboard (epa)dtxsid40883152 chemical and physical dataformulac19h23no2molar mass297.398 g·mol−13d model (jsmol)interactive image smiles o=c4\c=c/3(c(/c=c\21(c(=o)cc1)(cc23)c)=c4/n)c inchi inchi=1s/c19h23no2/c1-18-10-8-15(21)17(20)14(18)4-3-11-12-5-6-16(22)19(12,2)9-7-13(11)18/h3-4,8,10-13h,5-7,9,20h2,1-2h3/t11-,12-,13-,18+,19-/m0/s1key:dakhylifcyphqw-kzqroqtasa-n unlike other steroidal aromatase inhibitors such as formestane and exemestane, minamestane does not have androgenic properties.