[(1r,3s,4z,6z,9s,10z,12z,14r,15s,18r)-3-butanoyloxy-6,12,15,18-tetramethyl-16,19-dioxo-14-(2-oxopropanoylamino)-17-oxabicyclo[13.2.2]nonadeca-4,6,10,12-tetraen-9-yl] Butanoate
CAS No. 51733-49-4