(17-beta)-17-((((2-Chloroethyl)nitrosoamino)carbonyl)oxy)estr-4-en-3-one 19-Nortestosterone-17/N-(2-chloroethyl)-N-nitrosocarbamate 54025-36-4 ESTR-4-EN-3-ONE, 17-((((2-CHLOROETHYL)NITROSOAMINO)CARBONYL)OXY)-, (17-beta)- LEO 1727 LS 1727 NSC 269719