ls-1727 ls-1727 ls-1727 (also known as nandrolone 17β-n-(2-chloroethyl)-n-nitrosocarbamate) is a synthetic, injected anabolic–androgenic steroid (aas) and a nitrosocarbamate ester of nandrolone (19-nortestosterone) which was developed as a cytostatic antineoplastic agent but was never marketed. 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. ls-1727clinical dataother namesleo-1727; 19-nortestosterone 17β-n-(2-chloroethyl)-n-nitrosocarbamate; nandrolone chloroethylnitrosocarbamateroutes ofadministrationintramuscular injectiondrug classcytostatic antineoplastic agent; androgen; anabolic steroid; androgen ester; progestogenidentifiers iupac name phenanthren-17-yl] n-(2-chloroethyl)-n-nitrosocarbamate cas number54025-36-4pubchem cid320801chemspider283976comptox dashboard (epa)dtxsid20968855 chemical and physical dataformulac21h29cln2o4molar mass408.92 g·mol−13d model (jsmol)interactive image smiles c12cc3(1cc2oc(=o)n(cccl)n=o)ccc4=cc(=o)cc34 inchi inchi=1s/c21h29cln2o4/c1-21-9-8-16-15-5-3-14(25)12-13(15)2-4-17(16)18(21)6-7-19(21)28-20(26)24(23-27)11-10-22/h12,15-19h,2-11h2,1h3/t15-,16+,17+,18-,19-,21-/m0/s1key:ktqunvrslagbsy-rrfjazbjsa-n