CAS 142203-64-3 appears in our catalog under these names: ((1'S,2R,3'R,8'S)-2',10',13'-Triacetyloxy-1',7',9'-trihydroxy-8',12',15',15'-tetramethylspiro(oxirane-2,4'-tricyclo(9.3.1.03,8)penta dec-11-ene)-5'-yl) acetate, Taxumairol B. Offered by: Biosynth, MedChemExpress. Available pack sizes: 25mg, 10mg, 50mg, Get quote.