China 3, 3, 20, 20-Bis (ehtylene-dioxy) -17A-Hydroxy-19-Norpregna-5 (10) , 9 (11) -Diene CAS: 54201-84-2, Find details about China 54201-84-2, Norpregna from 3, 3, 20, 20-Bis (ehtylene-dioxy) -17A-Hydroxy-19-Norpregna-5 (10) , 9 (11) -Diene CAS: 54201-84-2