Photoresist Chemicals 2H,5H-4,10b-Ethano[1,3]dioxolo[4,5-j]oxireno[a]- phenanthridine,1a,3,3a,10c-tetrahydro-2,6- dimethoxy-,(1aS,2R,3aR,4S,10bS,10cR)- Cas：6882-09-3 Molecular Formula：C18H21NO5