Photoresist Chemicals Spiro[furan-3(2H),1′(2’H)-naphthalene]-5′- carboxaldehyde,4’a-[(acetyloxy)methyl]-5-(3- furanyl)-3′,4,4′,4’a,5,7′,8′,8’a-octahydro-4′- hydroxy-2′-methyl-2-oxo-,(1’R,2’R,4’R,4’aR,- 5S,8’aS)- Cas：85563-67-3 Molecular Formula：Spiro[furan-3(2H),1′(2’H)-naphthalene]-5′- carboxaldehyde,4’a-[(acetyloxy)methyl]-5-(3- furanyl)-3′,4,4′,4’a,5,7′,8′,8’a-octahydro-4′- hydroxy-2′-methyl-2-oxo-,(1’R,2’R,4’R,4’aR,- 5S,8’aS)-