chlormadinone caproate chlormadinone caproate chlormadinone caproate (cmc) is a progestin and a progestogen ester which was studied for potential use in combined injectable contraceptives but was never marketed. it was assessed in combination with estradiol valerate at doses of 80 mg and 3 mg, respectively. in addition to chlormadinone acetate (cma), analogues of cmc include gestonorone caproate, hydroxyprogesterone caproate, medroxyprogesterone caproate, megestrol caproate, and methenmadinone caproate. not to be confused with chlormadinone acetate. chlormadinone caproateclinical dataother namescmc; chlormadinone hexanoate; 6-chloro-17α-hydroxy-δ6-progesterone hexanoate; 6-chloro-17α-hydroxypregna-4,6-diene-3,20-dione hexanoateroutes ofadministrationintramuscular injectiondrug classprogestogen; progestin; progestogen esteridentifiers iupac name phenanthren-17-yl] hexanoate cas number35753-51-6 yuniirdk6bg5q4kchemical and physical dataformulac27h37clo4molar mass461.04 g·mol−13d model (jsmol)interactive image smiles o(c(ccccc)=o)(c(c)=o)1cc()2()3c=c(cl)c4=cc(cc4(c)3()cc21c)=o inchi inchi=1s/c27h37clo4/c1-5-6-7-8-24(31)32-27(17(2)29)14-11-21-19-16-23(28)22-15-18(30)9-12-25(22,3)20(19)10-13-26(21,27)4/h15-16,19-21h,5-14h2,1-4h3/t19-,20+,21+,25-,26+,27+/m1/s1key:vneysfjfvxcahg-brwsowncsa-n