Photoresist Chemicals TIANFU-CHEM 2H-1-Benzopyran-3-ol, 2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-8 -(phenylmethyl)-, (2S,3R)- Cas:850409-28-8 Molecular Formula:C50H44O6