nandrolone cyclotate nandrolone cyclotate nandrolone cyclotate (usan) (developmental code name rs-3268r), or nandrolone ciclotate, also known as 19-nortestosterone 17β-ciclotate, is a synthetic and injected anabolic–androgenic steroid (aas) of the nandrolone (19-nortestosterone) group which was never marketed. it is an androgen ester – specifically, the c17β ciclotate (4-methylbicyclooct-2-ene-1-carboxylate) ester of nandrolone. nandrolone cyclotate has potent and prolonged activity as an aas when administered by intramuscular injection and is reported to have a similar duration of action to that of nandrolone decanoate via this route. relative affinities (%) of nandrolone and related steroids compoundprarergrmrshbgcbg nandrolone20154–155<0.10.51.61–160.1 testosterone1.0–1.2100<0.10.170.919–823–8 estradiol2.67.91000.60.138.7–12<0.1 notes: values are percentages (%). reference ligands (100%) were progesterone for the pr, testosterone for the ar, estradiol for the er, dexamethasone for the gr, aldosterone for the mr, dihydrotestosterone for shbg, and cortisol for cbg. sources: see template. nandrolone cyclotateclinical dataother namesnandrolone ciclotate; rs-3268r; 19-nortestosterone 17β-ciclotateroutes ofadministrationintramuscular injectiondrug classandrogen; anabolic steroid; androgen ester; progestogenidentifiers iupac name phenanthren-17-yl] 1-methylbicyclooct-2-ene-4-carboxylate cas number22263-51-0pubchem cid164526chemspider32700233unii1mg9gw4zh8comptox dashboard (epa)dtxsid2023351 chemical and physical dataformulac28h38o3molar mass422.609 g·mol−13d model (jsmol)interactive image smiles c12c=c(cc1)(cc2)c(=o)o34((5(6c(=cc(=o)cc6)cc5)cc4)cc3)c inchi inchi=1s/c28h38o3/c1-26-11-14-28(15-12-26,16-13-26)25(30)31-24-8-7-23-22-5-3-18-17-19(29)4-6-20(18)21(22)9-10-27(23,24)2/h11,14,17,20-24h,3-10,12-13,15-16h2,1-2h3/t20-,21+,22+,23-,24-,26-,27-,28-/m0/s1key:reacbnmpqdinof-zdmpkjlcsa-n