Photoresist Chemicals 2(3H)-Furanone, 5-[(S)-(acetyloxy)[(1R,6S,7R,8S)-8-methyl-9-oxabicyclo[4.2.1]nona-2,4- dien-7-yl]methyl]dihydro-, (5R)- Cas：897377-49-0 Molecular Formula：C16H20O5