What are the physical and chemical properties of (8R,9S,10R,13S,14S,17Z)-17-ethylidene-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15-decahydrocyclopenta[a]phenanthrene-3,16-dione (CAS: 39025-23-5)?

This compound is a bicyclic sesquiterpene with a molecular weight of approximately 342.47 g/mol. It is sparingly soluble in water but soluble in organic solvents such as dichloromethane and acetonitrile. Chemically, it is stable under normal conditions but can react with strong reducing agents. It crystallizes in a rhombohedral form, and its stability is crucial for its applications in various fields.