Get quote from Alfa Chemistry for (1R,2R,4S,7R,8S,11R,12R,18R)-7-(2-hydroxy-5-oxo-2H-furan-3-yl)-1,8,12,17,17-pentamethyl-3,6,16-trioxapentacyclo[9.9.0.02,4.02,8.012,18]icos-13-ene-5,15,20-trione