Photoresist Chemicals 2-Butenoic acid, 4-[(6R)-6-[[(phenylmethyl)amino]carbonyl]-8-(phenylsulfonyl)-1,4-dioxa-8 -azaspiro[4.5]dec-6-yl]-, ethyl ester, (2E)- Cas：566905-07-5 Molecular Formula：C27H32N2O7S