nandrolone cyclohexanecarboxylate nandrolone cyclohexanecarboxylate nandrolone cyclohexanecarboxylate (brand names nor-durandron, norlongandron; former developmental code name nsc-3351), or nandrolone hexahydrobenzoate, also known as 19-nortestosterone 17β-cyclohexanecarboxylate, is a synthetic androgen and anabolic steroid and a nandrolone ester that has been marketed by ferring pharmaceuticals since at least 1961. 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 cyclohexanecarboxylateclinical datatrade namesnor-durandron, norlongandronother namesnsc-3351; nandrolone hexahydrobenzoate; 19-nortestosterone 17β-cyclohexanecarboxylateroutes ofadministrationintramuscular injectiondrug classandrogen; anabolic steroid; androgen ester; progestogenidentifiers iupac name phenanthren-17-yl] cyclohexanecarboxylate cas number18470-94-5pubchem cid9929986chemspider8105617unii45fah33fmmchemical and physical dataformulac25h36o3molar mass384.560 g·mol−13d model (jsmol)interactive image smiles c12cc3(1cc2oc(=o)c4ccccc4)ccc5=cc(=o)cc35 inchi inchi=1s/c25h36o3/c1-25-14-13-20-19-10-8-18(26)15-17(19)7-9-21(20)22(25)11-12-23(25)28-24(27)16-5-3-2-4-6-16/h15-16,19-23h,2-14h2,1h3/t19-,20+,21+,22-,23-,25-/m0/s1key:aqmoxbckekpdrf-ynfndhoqsa-n