... Capacity:6000kg/Month Product Description ESTRA-4,9-DIENE-3,17-DIONE 98% CAS No: 5173-46 ... Estra-4,9-diene-3,17-dione, 19-norandrosta-4,9-diene-3,17-dione; 19-norandrosta-4,9-diene-3,17- ... dione factory Quick Detail ESTRA-4,9-DIENE-3 ... name: Estra-4,9-diene-3,17-dione 98% Synonym: 19-norandrosta-4,9-diene-3,17-dione; CAS ...