Photoresist Chemicals TIANFUCHEM-Spiro[2H-1-benzopyran-2,2′-[2H]indol]-7-amine,1′,3′-dihydro-3′,3′-dimethyl-1′-phenyl-N,N-bis(phenylmethyl)- Cas：57771-08-1 Molecular Formula：C38H34 N2 O