almestrone almestrone almestrone (inn) (developmental code names ba 38372, ciba 38372), also known as 7α-methylestrone, is a synthetic, steroidal estrogen which was synthesized in 1967 but was never marketed. it is used as a precursor in the synthesis of several highly active steroids. almestroneclinical dataother namesba 38372; ciba 38372; 7α-methylestroneroutes ofadministrationby mouthdrug classestrogenatc codenoneidentifiers iupac name (7r,8r,9s,13s,14s)-3-hydroxy-7,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6h-cyclopentaphenanthren-17-one cas number10448-96-1pubchem cid65601chemspider59042uniin18a31mtb0chemblchembl2104052echa infocard100.212.018 chemical and physical dataformulac19h24o2molar mass284.399 g·mol−13d model (jsmol)interactive image smiles cc1cc2=c(c=cc(=c2)o)c3c1c4ccc(=o)c4(cc3)c inchi inchi=inchi=1s/c19h24o2/c1-11-9-12-10-13(20)3-4-14(12)15-7-8-19(2)16(18(11)15)5-6-17(19)21/h3-4,10-11,15-16,18,20h,5-9h2,1-2h3/t11-,15-,16+,18-,19+/m1/s1key:juajxsmwfofdfc-mnhdcvolsa-n