16β Methyl Epoxide (DB11) (CAS 981-34-0)

Compound Information: 9β,11β-Epoxy-17α,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione (CAS 981-34-0) ​Category ​Details ​Name 9β,11β-Epoxy-17α,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione ​CAS Number 981-34-0 ​Synonyms DB11; Betamethasone EP Impurity E; 16β-Methyl Epoxid; Beclomethasone Impurity 6 ​Molecular Formula C₂₂H₂₈O₅ ​Molecular Weight 372.45 g/mol ​Appearance White to light beige crystalline solid ​Melting Point 210–220°C ​Boiling Point ~565°C (predicted) ​Density 1.32 g/cm³ (predicted) ​Solubility Sparingly soluble in chloroform (heated), dioxane (heated), DMSO (heated); 903 μg/L in water (25°C) ​Storage Refrigerated (2–8°C), protected from light and moisture ​pKa 12.56 ± 0.70 (predicted) ​Form Solid ​Color White to light beige ​Key Notes: ​Analytical & Handling Guidelines: