label: (17 alpha)-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol, mixt. with (3 beta,17 alpha)-19-norpregn-4-en-20-yne-3,17-diol diacetate
label_lc: (17 alpha)-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol, mixt. with (3 beta,17 alpha)-19-norpregn-4-en-20-yne-3,17-diol diacetate