ˈɛθaɪlstɹˌɛnɑːl, ˈɔːlsoʊ nˈoʊn æz θɹˈiːdɛkˈiːɾoʊ sˈɛvəntˌiːn ˈælfəˈɛθəl nˈaɪntiːnnˌɔːɹɾɪstˈɑːstɚɹˌoʊn ɔːɹ æz sˈɛvəntˌiːn ˈælfəˈɛθaɪlstɚ fˈoːɹˈɛn sˈɛvəntˌiːn bˈeɪɾəˈɑːl, ɪz ɐ sɪnθˈɛɾɪk ˈɛstɹeɪn stˈɛɹɔɪd ænd ɐ sˈɛvəntˌiːn ˈælfəˈælkɪlˌeɪɾᵻd dᵻɹˈɪvətˌɪv ʌv nˈændɹəlˌoʊn nˈaɪntiːnnˌɔːɹɾɪstˈɑːstɚɹˌoʊn; nˈaɪntiːnˌɛntˈiː.
Ethylestrenol, also known as 3-deketo-17α-ethyl-19-nortestosterone or as 17α-ethylestr-4-en-17β-ol, is a synthetic estrane steroid and a 17α-alkylated derivative of nandrolone (19-nortestosterone; 19-NT).