21-Hydroxypregna-1,4,9(11),16-tetraene-3,20-dione 21-acetate Synonyms:3,20-dioxopregna-1,4,9(11),16-tetraen-21-yl acetate; 1,4,9(11),16-Pregnatetraene-21-ol-3,20-dione-17-acetate Molecular Formula:C23H26O4 Molecular Weight :366.4501 CAS:37413-91-5 EINECS:253-497-3 Density:1.211g/cm3 Boiling point:534.568°C at 760 mmHg Refractive index:1.585 Flash point:233.008°C Vapour Pressur:0mmHg at 25°C