Estradiene dione-3-keta（Ethylene deltenone）(cas 5571-36-8)

Compound Information: Estradiene dione-3-keta (CAS 5571-36-8) ​Category ​Details ​Name Estradiene dione-3-keta ​CAS Number 5571-36-8 ​Synonyms 3-Ketal; Cyclic-3-(1,2-ethanediyl acetal)-estra-5(10),9(11)-dien-3,17-dione; (8S,13S,14S)-13-Methyl-1,2,6,7,8,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-3,2′-[1,3]dioxolan]-17(4H)-one ​Molecular Formula C₂₀H₂₆O₃ ​Molecular Weight 314.42 g/mol ​Appearance Off-white to light yellow crystalline solid ​Melting Point 152–154°C ​Boiling Point ~488°C (predicted) ​Density 1.20 g/cm³ (predicted) ​Solubility Sparingly soluble in chloroform (heated/sonicated), methanol (slightly); 903 μg/L in water (25°C) ​Storage -20°C freezer (sealed, dry) ​Usage – Key intermediate for mifepristone (antiprogestin)– Antiglucocorticoid steroid spirooxazole– Pharmaceutical synthesis (hormonal therapies) ​Safety – UN ID: 3077– Hazard Class: 9 (Miscellaneous dangerous substances)– Pack Group: III ​Key Notes: ​Analytical & Handling Guidelines: