1254-35-9 4-Hydroxy-19-nortestosterone 17-cyclopentanepropionate 4-Hydroxy-19-nortestosterone 17-cyclopentylpropionate 4-Hydroxy-19-nortestosterone cyclopentanepropionate Estr-4-en-3-one, 17-(3-cyclopentyl-1-oxopropoxy)-4-hydroxy-, (17.beta.)- Estr-4-en-3-one, 4,17.beta.-dihydroxy-, 17-cyclopentanepropionate FI 5852 NSC522767 Oxabolone cipionate