(R)-methyl 4-((3S,8S,9S,10R,13R,14S,17R)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate; CAS No.: 20231-57-6; As a premier custom synthesis company, ChemShuttle specializes in bioactive compounds. These compounds are vital for studying biological mechanisms and developing new therapeutic agents. Our bioactive compounds are synthesized with precision, ensuring their effectiveness in various biological assays and research applications.